I have recently finished listing a large number of Channel Islands, Aden and Jamaican stamps. Title includes date of issue and Stanley Gibbons catalogue number to assist searching.
All my stamps are priced at 20% (one-fifth) catalogue value or less. I always combine postage so that you only pay one postage charge no matter how many stamps you buy when paid for at the same time.
Why not look to see if you can fill some gaps in your collection?
Best wishes
Tony