I'm a member of a couple of LR groups and many, many people are putting their vehicles up for sale now due to fuel prices. I think the market has already peaked and historically 110s have always been cheaper than 90s second hand anyway as there's not so much demand. I think you are way over priced. Ebay is not a reliable indicator as so many of the ads on there are fake. Have a look on LRO to see what current asking prices are like and as others have said remember they are just asking prices.
I always look at certain cars on ebay etc, and have also noticed the prices are falling, not much but they are starting to come down.
I reckon the smart dealers are going to shift the expensive gear asap whilst they still can.