Thank you both. Yeah, I am diligently looking on Craigslist. Running a search on every brand name to try to get a bit of history; there was a great blog post by a lady about the history of the majority of brands somewhere but I lost it... in any event, my current impression is that the "sticker" brands and most older stuff out of Asia would not be worth my drive, also anything that is too old (but you say that you have a 1900?? what brand?). Anyway, that is my current impression and I was hoping to refine it further.
I'm not in the US so a lot of this probably won't apply but here it's very difficult to get a quality upright for anything less than £2000 (around $3100.) What you will find at that price point are Yamaha B1s, Chinese makes like Steinmayer, Waldstein, Weber, maybe Kemble. I paid roughly £3000 for my (used) Yamaha U1.When I was searching for pianos I did see used Baldwin uprights for around £500 which could suit your purpose. However they were from private homes and if I were you, looking to spend $1000, (which is a lot of money but probably won't buy you a whole lot of piano) I'd save up until I could buy something from a dealer that was warrantied. My U1 would equate to around $4000 but it's grey market so you'd probably find them much cheaper in the US. You could also look at Pearl River models in that price range, used Kawai, etc - they'd make much better pianos and you'd be much happier than if you were to buy a so-so piano for $1000.
I think most of the sub-$1000 used uprights are of poor quality, and many are just junk. But there are gems to be found ... if you're patient.It's already been said that you should use a qualified piano technician to check the condition of the piano. If that costs $100, so what? The risk of buying a junk piano (without your knowing it's junk) is quite high. Let a tech evaluate the condition.Also, allow for at least $100 for movers. Pianos are heavy.Also, allow $100 to $150 for a first tuning. And another after perhaps a month.So ... that $1000 piano is now at $1300 to $1400, eh? Them's the breaks.Note: I only use $1000 as a reference. When someone wants to shed a piano, he might price it at $1000. Or $500. Or $200. The variation is enormous. But even for $200 ... you still need a tech to evaluate.Finally ... before using the tech, do an unskilled test drive of the piano. If it's mostly out of tune, it may have not been tuned for many years. If so it just might be an expensive piece of useless furniture.There you'll find the piano's year of manufacture. A piano over 40 years old is likely junk, unless it has been rebuilt (not likely). In which case, skip the technician ... and skip that piano.