A reality check: most stores do not pay very much for classical records. I don't know what your expectations are or what you paid for the collection, but wholesale I think that you be very lucky to receive anything near $1 an album. Most vendors will offer you .10 - .50 per, if they will even pay for them at all.
It's not that classical records aren't worth much; they are, to the right buyer. But there is a reason that most of the space in record stores is taken by rock and jazz albums. The demand completely outstrips the (relatively) small demand for used classical albums.
I think that you will be better off selling them here or on eBay. Sell the rare ones individually, and the more common LPs in lots. Be prepared to donate or give away opera and specialty albums.
It's not that classical records aren't worth much; they are, to the right buyer. But there is a reason that most of the space in record stores is taken by rock and jazz albums. The demand completely outstrips the (relatively) small demand for used classical albums.
I think that you will be better off selling them here or on eBay. Sell the rare ones individually, and the more common LPs in lots. Be prepared to donate or give away opera and specialty albums.