To quote that guy in Robocop:

"It takes money to make money".

I'm saving for WoTLK now, I want to start ahead and stay ahead in the expansion in terms of gear, rep and professions. Dont have epic flyers on my guys yet, and probably wont bother till the expansion hits (speculating that the price will drop then). Making cash from a variety of craft professions and speculating on the gem market for once S4 hits.

If you have time to spare and want general cash inisights (non boxing), see this megathread on EJ:

http://elitistjerks.com/f15/t18064-art_making_gold/