Matt--

Well, since these upgrades seem to follow your purchases, would you mind doing the rest of us a favor & purchasing earlier? That way, the improved models will come out sooner, & we'll all benefit. Well, almost all, anyway... <img src="images/graemlins/wink.gif" alt="" />

{Tongue in cheek mode off}

Seriously, though, you have multiple options, as others have mentioned: give it to a deserving group (or even individual, if you're so inclined--perhaps your significant other, if they lack equipment of their own), sell it (CPF for the Petzl; KnifeForums for the Sebenza & maybe the MSR), or squirrel it away in a BOB, or cache (such as a bag or box at family/friend's place--kind of expensive to do that with the Sebenza, but...)

Anyway, I sympathize completely, 'cause I thought I was the only one to which these upgrades-after-I-buy-it occurred!

David