For $2, why not, right? It is a gamble, as you say. Basically a scratch off ticket, with better odds imho. Maybe you'll be able to sell it for $10 within a year. Maybe not. Maybe $5. Maybe something crazy will happen and you'll sell it for $30 or $100.
On the bright side, it looks like renewal/transfer rates for .science might be just a few bucks some places, so it has that going for it...