True but at some point.. unless someone takes them off his hands he's going to have to face a decision. Better to recycle and sell them, than toss them in the bin.
Digitizing and blanking them out and selling the tapes aren't mutually exclusive, OP may have an opportunity to recuperate the digitization costs that way.
If you pass one around long enough, it'll sure enough generate at least a couple of copies of it, so in the end you'd have 2002 VHS tapes on that wall :)
I used to work in a VHS duplication facility, and spent plenty of time with a degausser to erase tapes. Not a fond memory. Plus, if you forgot about your wallet, you could ruin your credit cards and license.