As others have said, buying used is a crapshoot. And I'm not sure buying a large lot is really all that economical. How many treasures do you think you'd get versus the amount of dreck? Then there's the disposal of the stuff you don't want. Nah. Better to hunt and acquire LPs of the music you want, in the condition you require. Besides, it's more fun that way right?
I inherited my pop's LPs and system. There are 14, 16" long boxes of records to go through. 😲(I didn't have time to review as I packed them.) I'm guessing 85-90% are classical. While I love classical, will I want ALL of them? I won't know until I unpack and catalog but I somewhat doubt it. Then again I won't be hunting for classical LPs for awhile!
Happy listening...