If your stash primarily consists of stuff like Merle Haggard, Wham!, Barbra Streisand, Kenny Loggins, etc...
GET RID OF IT!!!Otherwise, I think you may end up kicking yourself down the road if you dump on your current collection now - I don't know how far along you are. What would stop you from doing this same thing with your next one too?
Fill a crate (or crates) with your best records and
listen to them. Try adding your new records to these crates from now on so you have a mini-collection within your old collection - and it's just the Kill.
I'd keep the other records too (I have tons of Kenny Loggins and Barbra Streisand records on the shelves

). I'm always finding new stuff to sample on records that I thought were useless a few months ago. Plus, in a world where 85% of producers sample stuff that's already been over-used - we should probably toss some crazy sounds their way, right?