It takes money to get into the hobby, but now I try to sell off something to pay off or offset substantially the 'upgrade' that replaces it. That being said, I am obsessed with gear, no doubt. sometimes i think the music is the means to the gear, not the other way around. i cruise agon daily to window shop, check out the gear and Google to lean more, and read up on these forums. I've given up spending on pretty much every other indulgent item and devote funds almost exclusively to audio. My fun comes from lusting over, reading about and trying new components (no real audio stores around me...so sad), and being the frugaholic that I am, always try for what I consider to be a great deal.
I could spend (save) more responsibly, no doubt. Patience and will power were never my strong virtues.