Well, pretty much the price of everything has dropped a bit other than really high-end boutique stuff. So, if you are asking the same price you would have four years ago you are probably pricing yourself out of the market. I don't know that to be the case. Just a guess.
Also, I get completely turned off by ads with a lot of lectures in them. If an ad ends with "Go away if you are a scammer." "I don't need the money so don't bother low balling me!" "Tire kickers will be thrown in the pond!" (That's an actual quote from a recent ad here.) ....or any other lecture that assumes I am some sort of child, I don't bother to respond even if the item is something I really want. Those kinds of things let me know that dealing with you will be no fun at all. Again, I haven't looked at your ad. I am just throwing things out there.
Generally, ads should be short, to the point, positive, informative, and include GOOD PICS. If your ad is already like that, and you still haven't gotten any hits, it's either an item nobody in your area wants, a bad market overall, or you have priced it too high.
Good luck.