That's why I suggested "Housing Bubble"
That's an interesting concept Chuckie Chuck. It would certainly be intriguing to try. Might even want to segregate the plot types (river, plains, mountains) for independent values as the availability for each type declines. Or possibly even varying the depreciation of the land depending on how the game plays outs (are all the plots consumed by round 9,10, or round 11, or 12 because 2nd lost a plot on round 11), thus having endgame land values ranging from something like 300-700.
Also setting the auction house to begin bidding at current land values might change things up a bit, versus -60 last purchase price.
You know the more I think about it, the more I like it. It would add more risk to 6-8 round auctions, because everyone still want an extra plot for its potential, but knowing that the earlier all the plots are consume that its more likely to score a lower land value at the end. It could affect how much one is willing to spend, or to grudgingly spend because bidding began at 2800 and another player is willing to run it up to 4000.
I think you'd still have a pretty good balance game though.
Thanks,