It would help if some of the dealers priced the things correctly in the first place , just lately i have seen stuff listed on here that can be bought from other dealers or on ebay for alot less than they are asking , this is not manship selling but other pro dealers. everyone should check ebay before clicking the pm button to compare prices and also the completed items so you can get an idea what the title is selling for on there should you decide to move it on soon.
most of the records on labels like rictic curton tamla etc should be dirt cheap , there are that many around but because of the price guides listing them at £10 people want near that for things that should be in soul packs / 3 for a tenner type offers
There are still the same amount of records out there as there was when the price guides first came out , they have not got any rarer just more in demand or hyped
The records would sell if they were priced correctly in the first place , its just that its less work to sell one record for £50 than 10 for a fiver