Welcome to the community! This is indeed a great place to talk about the game.
Since you mentioned price as a potential problem, I just wanted to let you know about this site's
C3V group, which continues to release HeroScape designs using figures from other games. They're all well-designed, and they can often be cheaper depending on the figures that you're looking for.
There's also a
Sales and Trades section here, which sometimes has users selling stuff for much cheaper than eBay prices if you're patient.
It's great to hear that you're enjoying the game! I hope to see you more around the site.