IMO it comes down to what your principal objective is: future residence, or investment.
If you are a pilot seeking the airpark lifestyle, then it probably makes sense to buy the land. Maybe it will substantiately appreciate over time; maybe not. If it does, that would be a bonus. If it doesn't, well, aviation is an expensive hobby and like owning your airplane, it can't be justified on purely economic terms (at least you will have pursued your passion, and life is short). I doubt that you would actually lose money.
On the other hand, if you are primarily thinking of this as an investment, it wouldn't be my choice. There are certainly exceptions, but generally speaking speculating in raw land is not the most productive use of financial resources.
"If at any times we must deal in extremes, then we prefer the quiet, good-natured hypocrite to the implacable, turbulent zealot of any kind. In plain terms, we are not so fond of any set of notions, as to think them more important than the peace of society". John Toland, The Description of Epsom (1711)