I plan to start with a basic flatbed to make scans for internet and home inkjet prints. If I manage to get a photo worth a large print then I'll send it in for scanning.
Much like doing the math of having your rolls scanned when developing, if you consider that pro drum scans can run upwards of $100 (depending on size) then I guess there is a point where a big-time scanner makes sense if you are doing a lot of it.
Right now, I just hope I can get some film back that isn't totally botched. I'll go from there.