Upload & Sell: Off
Thanks for the advice, everyone!
I think I would really love making prints of my personal photography, but I know that in the midst of senior photo season, when I'm shooting 3 seniors a day and the phone is ringing off the hook, the last thing I'd probably want to do is deal with printing, trimming, mounting, etc.
Right now I use Miller's lab for pretty much everything I do. I have to say that I've been pleased with them and the only time I need reprints is usually due to bad cuts rather than color issues.
Mr. Gardner - I have terrible luck selling large prints. When most of my clients pick out "the big one", it's an 8x10. I do have several 16x20s in my viewing room, but I think I'll take your advice and get some even bigger prints made to show them how tiny those 8x10s really are.
I'll definitely think long and hard about investing in a large format printer.