Originally Posted by
Hulkified
TL;DR - This game isn't black and white like you think it is.
Your exactly right the build times for each TH level are exactly the same, what your not looking at which is the whole point of rushing to TH9 is the efficiency of raiding of TH8 vs TH9 and the available gold dump.
I am going to work via PROFIT not REVENUE because profit takes into account next cost and army costs. Also disregarding lab time because lab time is worse for the max so will handicap the rusher and give the maxer a easier time. I will also handicap the rusher and do nothing but walls @ th8.
TH8
78 days to upgrade in terms of build time(143d research), with 225 walls @ 500 a pop means you must supply your base with a measly 108m for defenses, 65m for lix upgrades and 128m resources for walls I wont go into DE get to complicated but TH9 is 12.5x more then TH8 DE. Total res is 301m profit
TH9
166 days (king level 5 to 30 AQ 1 to 30) in build time 205m gold, 95m lix, 1B resources for walls. Total res is 1.3B profit
So to be truly max and this is the point your probably missing is that a max TH9 has lava set and 30/30 heroes. The TH8 who does the max thing has to farm 3.8m resources a day.
I rushed and spent 14 days @ TH8 coming from a max TH7(same as the maxer would) I farmed full skulls in this time had barch maxed camps maxed. So the total resources needed for a TH9 rusher from max th7 = 1.3b + 301m - 128m(walls farmed at th8, skipping lab ♥♥♥♥ and will just handicap myself for this math) = 1.47b resources
Rusher @ no idle builders once TH9 14 days of idle builders @ TH8
166 days + 78 days= 244 days
1.47b / 244 days = 6.0m per day farmed
If profit is @ 6.0m a day it will take exactly 244 + 14 days idle = 258 days to hit max TH9
Maxer @ no idle builders
301m / 78 days = 3.8m
1.3b / 163 days = 8.0m per day farmed
If profit of 3.8m and 8m per day are farmed at respected TH levels it will take 241 days to hit max TH9
If you can farm 7m per day it is now 185 days to max
If you can farm 4m per day it is now 325 days to max
Rusher
So once @ TH9 you unlock 220 army spaces 5 more CC slots 4th spell and TH9 troops. It takes 15 days into TH9 to get barbs L6 this is THE upgrade that changes your farming completely. The reason this upgrade changes everything is because you can now use less troops to do more damage as their HP is increased. So instead of using 200 troops on a base you now use 150 as a example. 50 units @ 22sec( 20sec barbs 25sec archer) gives us this equation
50 units x 22 secs = 1100 secs / 4 rax = 275secs / 60 secs = 4.5 mins
This 4.5mins only gets larger as your Archers get to L6 and you can use even less troops to farm. The more time pressing next gives you a bigger % of finding a collector raid. If you are wasting 4.5mins every raid you for 91 days it adds up to a LOT of wasted time that doesn't need to be wasted(75hrs for me personally).
Maxer
So if you can farm more then 3.8m profit per day @ TH8 you will cap out resources and be bottle necked by builder time. If you can just farm 3.8m you will have no resource bottle neck and will upgrade to TH9 as a max TH8 with 0 idle builder time. If you farm less the 3.8m total profit you will not max TH9 with 0 idle builder time.
Also once you get to TH9 you now have a larger set of expenses due to having to produce more resources per day you must now raid 33% more per day to keep builders busy, so revenue will have to increase to cover the 33% more costs. When at TH8 due to the lower costs you get a easier time due to more revenue becoming profit. This easy time breeds a less active play style then what is required to max out @ TH9.
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So while your technically correct that the builder time for maxer and rusher is exactly the same. You dont understand the reasoning behind the different play style and why I say a rusher will max th9 before a maxer can. There is a huge amount of x-factors into this whole equation but I tried to keep it basic the x-factors go against the maxer UNLESS they suddenly become as active as a rusher which generally is not the case and is why people cannot do lava walls.
How do I know this well I have spent 220 days(estimate) @ th9 currently with AQ25 BK27 and only 55 more lava walls till max TH9 - 45 days (265 days @ 5mil resources per day)
Edit: 4th mortar not included also if there is a problem with my math please point it out, thanks.
Edit2: Math was horrible fixed it up tho was out by .4m(rusher) and 1.5m(maxer) by no means a small mistake thanks to warios for pointing it out.