There are so many variables in the use of eminent domain, that I can't give you an answer.
I just think that it is up for the local community to decide and that the property owner get a fair market value for his/her property.
When I buy a piece of land, I don't want it to be taken away by anyone without my consent, eminent domain or not. And I don't think this makes me a Libertarian.
You know, if I didn't know better, I might think you're dodging the question because you don't want to defend the indefensible.
I just think that it is up for the local community to decide
Ok, if it were your local community, and you were asked, would you like eminent domain used for economic development, or to increase the tax base?
Or would you prefer your local community reserve eminant domain for things like roads and airports?
The only legitimate transaction is one in which the terms are agreed to by the buyer and seller. If a community (people other than the property owner) can subjectively assess property values and then seize the property then the concept of private property is meaningless.