Only raiding?

Just like anything, when you have a lull you start thinking about other things so here I am...

Our guild has cleared everything as far as 25-man raiding is concerned. We're thinking about going back and doing 10-man stuff and achievements. But the vibe I'm getting is we're pretty much done until Ulduar.

My continuous attempts to play less have caused me not to log on and pursue achievements on non-raid nights. With so many achievements I could always find an excuse to log on and do something. Instead I've been stopping myself. This weekend I only played about 3-4 hours, which is nothing compared to usual.

One thing I'm wondering about is, since I'm not logging on and getting gold as a side effect of doing quests or farming rep, will I end up not having enough gold to raid with?

Will I be able to sustain my character by just logging on for raid nights? And more importantly will I stay interested only interacting with my guild during raids?

Anyone else only raid when they play WoW?