i'd buy it at asking price. In the bay area, you can "scroe" bargains like yours and discover
there's one or more hidden gems that returns more than your purchase price.
however, you'll have to research each and every album - including looking inside to
find whether it's content appropriate (album cover matches inner vinyl LP),
has different LP worth thousands, banknotes, autographs from dead people, pictures
notes, etc
I once paid $100 bucks for 600 classical (filled my car and pointed headlights up at aliens)
and found a Rock LP that sold for $125. the other gems were more impressive...
after the prelims, you can find better versions of LPs you already have that may be scratched
or look bad to people who buy on looks versus sound quality. then upgrade your
album cover or vinyl LP.
then build sets - base it on looks first - remember most people buy on looks hence
the grading on the album cover (which has NOTHING to do with the LP sound quality)
and sell the sets. gotta Love Elton John, rolling stones, Beatles, with their dozens.
then if you have even more time, look at the dead wax. not just for dead people. people
go ape over certain scratches in the runout area.
Next, build a level with graduated vertical markings and run the LPs and measure the
warp and sell them with warp levels - not just to StarTrek fans. novel marketing.
clean them before selling. 99.999999% of folks include the accumulated dust, dirt,
fingerprints, markings, dried body fluids, and groove fillers since the LPs were stamped
and packaged and while 99% of buyers don't know nor care, there are folks who pride themselves
on cleaning their offerings, and they make the HIGH $$$$ that you might think yours
will also sell for. see discogs, goldmine, for great examples of high value LPs.
when I can't sell some rock stuff like Pink Freud, Eaglets, Eldon Jon, Genifer Waners,
I bundle them with a turntable and folks line up around the block. do the
fancy marketing - 100 rock Lps with free turntable, or turntable with free 100 rock LPs.
BTW call the seller, if he has a british accent, he will have parlophone and mono versions
of the Beatles worth BIG $$$. and they will be in great condition since the UK doesn't
have many pickup trucks.
there's a few more tricks but this is most of it.