While I'm not going to go through the effort of tracking down receipts to make a incredibly detailed list of my expenditures (because I admittedly have bought some dumb shit) I am going to say it adds up really quickly.
Actually... This might be a good excercise. Let me think about money i spent on hardware alone:
Moog Little Phatty + CP251 (new) €850 (a steal bargain due to currency rates between GBP and EUR in 2008)
Talkbox horndriver (DIY talkbox) €50
AKG Q701 €220
Nuforce Icon HDP €0 (i bought a bunch of Nuforce DACs from a bankrupcy, kept one, sold the rest and did some profit... about €400 profit and a free DAC)
Arturia Beatstep (used) €55
Studio projects B1 (condensor mic) €120 (i think this is what i paid in 2008, maybe less)
Two Moog Slim Phatties (used) (basically rack versions of the Little Phatty, for polyphony) €900
MFB Tanzbär €777
UR22 USB audio interface €115 (paid with the sale of my FA-66 interface which i paid €200 new)
JBL lsr305 monitors €280
Upgrade CV out mod of my Little Phatty €300
Random stuff (cables, stands, mini mixer...) €100
Adds up to more than i was thinking, lol. Nearly €3500.
Nevertheless, I stand by my previous assessment. Buying some second hand synths, an audio interface, decent monitors and headphones and a copy of Reason, will not cost you an arm and a leg and get you a long way towards making decent sounding stuff:
Used Minitaur: €350 + used DX7 €350 + copy of Reason €350 + interface/monitors/cans €500. That's a total of €1550. Basic wave editing can be done with the free software that comes with your interface or with audacity.