Yes you will naturally be getting more of the stuff.
You will have an extra drill so will be producing more, and with your better troops you can farm comfortably in higher leagues and raid tougher bases, which tend to have more de.
Upgrading heroes is far easier at th10 than th9. So if your concern is heroes then definitely go for it. If your concern is walls then it is debatable, but th10 loot for gold/elix isn't that bad anymore so that's fine too.:thumbsup:

