I do not collect old bottles. I would think that would take up a lot of room. I had this fetish of collecting matchbooks from places that I visited. At first, my wife bought a huge brandy snifter and when I filled that, she took it away and I just kept them in a large cardboard box. I never counted them, but I would bet that I have over 3000 different matchbooks. One thing is for certain, I will never run out of matches.
I do remember that as a kid growing up, my Dad had a lot of bottles. Some were like a clear green that were used to hold all kinds of stuff, especially chemicals and oil. He even had some that had a mechanical lever on top with a stopper for keeping in the unused liquid in the bottle.