Actually, I was basing tha on RL market dynamics.
If you talk to a realtor about selling/buying a house, the first thing they do is take a survey of the sale prices of all of the houses in your area to get ou a suggested sale price.
Typically, property taxes are also adjusted based on the market value of comparable properties.
If you've ever dealt with the public in a retail setting, the most common thing you hear is "my buddy/sister/uncle just bought this same thing last week for..."
What's the first thing anyone does when they buy or sell something in EU? They check the auction history.
I'm not saying this will instantly kill the market for Land Areas, but it certainly won't help. If, as you suggest, all LA owners hold onto their properties and refuse to sell for less, then prices could stay unchanged. But there's only so long a person can keep your money tied up in virtual properties, just ask ND. Eventually, some of them will decide to sell. Who knows, maybe Star has enough peds to buy them all up for 100k, but I doubt it.