At the rate I've been doing the models I have it would take around 10,000 years to finish. Many of us seem to have the same problem.
I intend to work harder at my pile, but it always just seems to get bigger, heh. I'm going to try for the airbrushing thing to speed through it at least some (I need all the speed I can get). I also tend to be a perfectionist and it can be really hard to half do something. I also seem to always want/look at different things/armies and that gets you in trouble also.
If GW released new SoB I'd probably actually be able to focus on getting them all done nice.
Wife: "How much do you have invested in these ... miniatures?"
Me: "I don't think invested is the right word."