Consider a 2 acre project:
$3MM in land costs inside Burlington
$300,000 in land costs right outside Burlington
What projects would could you do on the $300,000 lot that you can't possible do on the $3MM? Basically all of them!
Regarding the UVM project: they should sell that parking lot to bring the $1.5MM/ac costs closer to $300k/ac so people can build stuff instead of a place to store asphalt :)