I'm not too worried about the time it'll take me to scan them in myself. They've been sitting in storage for a dozen years. I figure that even if I end up buying a scanner, I can make most of it back by reselling it (especially if I get that $200-300 one), as I'll have no further need for it. Also, these are all slides, no negatives, and slides are far easier to scan than negatives, as there's not any worrying about positioning.

And, honestly, if it came to me paying for a service to scan them in, I'd never do it. I can't really explain why, but I'm compelled to either do it myself or not at all.

But thanks for pointing it out. I had already considered it and dismissed it, for no exceptionally rational reason.