I sold 11 albums recently for just over £450. That said, they were all pretty rare, relatively speaking, and I took a £40 hit on fees, more or less, so you need to factor that in. That sale let me buy two new carseats for our now 16 month old twins a few months back however.
Depends what you're expecting; I sell occasionally and price realistically, loads of photos (I use Auctiva) and an honest write up with a clear returns policy (7 days no quibble assuming no damage done). With all the chancers out there, I put things out insured if the final sale price is greater than standard 1st class cover (£36) and this is non-negotiable.
Enter your album titles, do a completed items search and see what things have gone for. If it's a couple of quid, it's decision time.
So it really depends what you've been trying to sell off - what are the titles?