I have a collection of vinyl in a box found in my garage. 43 (12" vinyl) and 26 (7" vinyl). I have artists such as Elton John, Cat Stevens, & The who. A quick look on Ebay reveals the 12" vinyls I have are going for a total of £547.
Some of the highlights according to what others are selling their copies for are:
The Who - A quick one Cat no. MONO 593 002 (Selling for well over £100 on eBay)
Elton John - goodbye yellow brick road double LP 1973 (selling for £100 on eBay)
Cat Stevens - Tillerman, War of the worlds, & Bona Mona Jakon (all selling for around £20 each)
Other titles are anything from £2.99 - £20. A good range in my set.
Happy to make £250 on the whole lot including the 7" vinyl