Yeah, that's how capital markets work in general. If you can charge more and still find a tenant, you're replacing low-value land use with higher-value land use. This is particularly true in commercial real estate. Though that's kind of a side issue to my original point: the excess profits attracts and incentivizes similar investment, which increases the cost of investment, which lowers profit down to the general waterline of the economy.
Georgism brings up some really fantastic points along this line.
If you want to be technically pedantic, exclude the value of improvements on the property. You don't really want to tax the act of replacing an empty lot with a $10MM factory. You do want to tax the right to use land within the catchment of the various services the state provides. Land isn't produced, so you can't disincentivize producing it.
