sounds nice.. You really need to take into account.. and examine yourself/your family seriously on this:
-how much time you really expect to use the property? and
-how close by is it to where you live?
My old biz partner bought some nice land in VT - 26 acres, stream running through it, bordered on Nat'l. Park.. It had a crappy cabin but they had plans to build some kind of log/kit home. One of the first things they did was set up a wood-fired, stream-fed hot tub.. it was pretty sweet!
But it was 3 hours away. They didn't think of the realities of their kids' weekend commitments. Within several years they ended up selling. I think even w/o kids a place would have to be pretty awesome to gear up for a regular multi-hour commute.
You might have other ideas, though, such as the possibility of loaning it out to family/friends, renting it, spending months at a time there.. which would all make it more worthwhile.
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As for this particular offer: I don't see that any of the "homes" are actually built yet (photos show only lake area). Also the fact that these "specials" are "Only Available on June 16" would give me pause.
There's many a slip 'twixt the cup and the lip. There are a lot of really dirt-cheap pre-development offers here too. The developer pockets a wad of cash, and then may or may not begin, continue, or finish building, and may or may not declare 'bankruptcy' in the process. Some friends of ours got caught in one of these scams - too long a story to fully recount but the most glaring aspect was that they later found out the land the condos were built on was mortgaged by the developer and they didn't even "own" it.
I don't think I'd ever purchase anything sight unseen. I think in this case your brain is telling you the right thing.