I like to get my hands on the cheapest edition I can in the best condition at that price. If the words in the book are the same as a more expensive one, I’m getting a better value, in my opinion. Then if it’s a story that becomes really important to me I might consider upgrading to a “nicer” or collectors version, and keep the old ones as lender books.
I’m happy with cheap reading copies. I was brought up browsing through second hand stores and I have some reading copies that may well be Victorian, like Thackeray and Dickens.
I do collect certain books and I came across an early copy of Robert Burns that had been signed by a previous owner- who was my 3 great’s grandfather! I paid a couple of hundred pounds for it!