It was stuff shot on cameras that were decent in their days -- a JVC with external tape deck (!), a Panasonic camcorder (can't remember the model, but it was expensive). Some of it might have been S-VHS. It was as good as VHS got.
If you mean the content -- yeah. It was worth it. Early video of what my company did, family stuff, school-related, some material from when I was teaching a Research Methods course. Would I have run to save it from a fire? No. But I couldn't see any reason to let the tapes deteriorate when I could digitize them. And I knew I'd be moving soon and the less to pack, the better.
I already had the AG1980 because my son (now a full-fledged film editor) wanted to get into editing, and used it with an analog editing controller, the name of which I can't remember. (This was mid-1990s.) The AG1980 could be controlled by an external device, so it was useful.
The AG1980 would let you get the most out of your VHS tapes. But I can't tell you how much more it would get than a plain home VHS deck from years ago. I do think more, and I do think that the robust mechanics and electronics probably can get more out of nasty old tapes than a lesser machine can. But is it worth it to you? If you'd like to say "I extracted every bit of information from the old tapes," then the AG1980 would be best. Only you can say.