Bill is right, of course, and I've been doing this for years now as well. But I find that scanning does take loads of time, and it is boring.
I don't often have much to do on my pc, and I much rather like to go out to shoot, I really have to force myself to sit down and scan. I'm lousy at that, and now I have about 50 developed but unscanned films lying about: it just builds up ever so slowly.
What's worse is that the older the shots get lesser (isthataword?) interested I'm in those rolls and don't feel much urge to scan them. I much rather see my most recent results.
All this is one of the reasons I'm looking forward to the RD-1. It's going to save me time on the scanning front so I'll have more time for shooting.