I would rather pay 1.2 * $X now than $X/months per month over the lifetime of a product. It's not about the money for me, it's about having a fixed cost rather than an indefinitely recurring one that I have to continually decide if it is still giving me $X/mo in value and remember to cancel when I'm done. It's also about the sense of ownership I get over the product versus "this is something I'm renting" which, for me, is a big deal. I get that it is difficult to price in the cost of bug-fixes, but I consider that not my problem.

That said, support as a subscription (or alternatively, pay-per-issue) is totally fine by me. I'm also fine if new features are added to Version 2, and I later have to decide whether to upgrade or not.

And although it is not about the money for me, it frequently does pay off. I usually opt for the longest recurring subscription (if lifetime is not available) which usually has steep discounts and in the case of my XM radio... still enjoying that lifetime subscription.