any record (45/LP0) record collectors?

Discogs os good advice fr general idea pricing keep in mind there are firts pressings for example Blac sabbath Paranoid is it a 1970 pressing or a reissue from the 80s? all that matters plus if the record skips etc. I go to a used vinyl shop where the owners clean and spin every record check for skips then price accordingly anything too far gone they dont sell. Ive paid anywhere from 10.00 to 25.00 depending on what it is / Popular stuff is pricey beatles stones etc if in good shape. Good luck I think if you do your research and are patient you may be able to make a buck. I would a[[roach it lile this, Id look up the ones I think are rare and valuable seperate them out and then try and sell the avearage value stuff in a bulk deal to a used Vinyl store but thats just an idea.