Agreed. Walls aren't for everyone so don't stress too much on them.
I would say though that you should get them to at least Pink. Once you reach Pink attackers need 2 x Max Wall Breakers to get through. At Gold they only need one.
I only carry 8 wall breakers so I can either open 4 compartments of Pink or 8 compartments of Gold - big difference.
You've done well on your defences though. Quickly get the Pinks then upgrade! The battles and loot are just as good at TH8 so don't worry.

