Seem to remember albums called 'Top Of The Pops' on the Decca label which were (poor) imitations of all the current sounds. I believe a certain Reg Dwight used to be a session musician on them.

I'm a blind man, i'm a blind man, now my room is cold,
When a blind man cries, Lord, he feels it from his soul.
[Link]

Indeed, Reg was a busy-bee as a session pianist. staffie got me one where Roger Hodgson (to becomes lead vocalist of Supertramp), hired Reg to tinkle the keys on a single he released. (the single never charted )

"The facts have changed", Rishi Sunak

It's an interesting point JRW2. The rarity of an album will make it sought after and highly valued and there are plenty of collectors who will buy regardless of the condition.

But it is not only the vinyl but also the cover and inner sleeve that are important to some. Fact is that a rare album in mint condition will be worth more than the same record that's been heavily played, taken to lots of parties and had multiple owners most of whom were heavy smokers.

If you've got something you think might be worth a bob or two, have a look at Discogs and search their marketplace for a title to get an idea of the price folk are asking.

Dad and I watched games standing on the muddy slope of the Holmesdale Road end. He cheered and I rattled.

Just to add from my own experience of having my record collection bought by a dealer. There are certain pressings and issues that are more valuable than others.
When I bought records in shops, occasionally, the person serving would put the 'wrong' dust cover (inner sleeve) over the record. So the inner sleeve might be a different issue to that of the vinyl record. There are code numbers and certain colour schemes that denote the pressing of the record and it's cover(s).
First pressings are obviously the most sought after.

Seems trivial, but collectors are scrupulous in their detail. Lots of visible wear and scratches will also impact the price offered.

"The facts have changed", Rishi Sunak