Eh....the VIX is pretty low at this point, so I dont think you're going to get crushed as much as you might think. Sure if the market pops another 10-15% by new years, you're going to have the VIX a touch lower, but its not going to be cataclysmic for your vol considerations.
If you're buying puts with deltas that close to 0, you're going to be more worried about actually getting a move in your favor that slight changes in IV.
What does the VIX being low have anything to do with it though? The fact that vol is low and the VIX is low is already priced in to all options. Do you think market participants are stupid? You think they don't know when the volatility is in it's high range or low range? You think you can just wait for the VIX to be in it's low range and then unload on long Vega trades and not get crushed simply because as you say it won't move more than 10-15% more? Vega crush is just as present and problematic when Vol is low as when it's high.
A long OTM option is no safer now than it was a month ago, three months ago, a year ago, or any time ever ago. At best, it's a hedge. That's it. There's no strategy on a constantly decaying product. That's like saying, sometimes buying a Toyota Camry is a "good" investment. No no my friend, it's ALWAYS a depreciating asset. At best, you might get a good deal.
OTM puts and calls are at best stupid trades, and would only be stupid trades if you get a very good price on the contract. They are either stupid trades, or horribly retarded trades. There is no mathematical way to avoid the problem of them being decaying products, even if the VIX was at 10, still stupid, still subject to vega crush, still not worth trading...



