Hmm. I'd say I spend about 20-30 minutes each on my tracks. I just pirate sample CD's off of the internet and use Acid Pro to jam them all together until they work. Sure, they all sound the same, but since I sell every track for a lot, and am totally rolling in cash as a result, it doesn't really matter to me if they sound plastic and trite... ;)
heh. on the raaaaaare occasions that I actually "finish" a "track", it takes me somewhere in the range of 40-80 hours. I'm working on getting that down to less time, but I just keep getting these live-pa gigs, and sink all my time into making tracks as "live performance ready". OTOH, I'm now on my fifth or sixth complete rewrite of my hour-long live set, and finally have some music that I think is worthy of putting on vinyl, so we'll see...