If I can afford the new car at this moment, and I'm trading the old car in at the dealership, i.e. upgrading, then no, I'm not wasting money on the older vehicle when I know I won't recoup anything for it upon the trade. If the Twins wanted to upgrade, then they could've/should've just sought an upgrade. I mean end of the day it's not my money, so I don't really care about that aspect of the Cave situation, but the notion that he's just an insurance policy that enables the team to continue shopping pre and post lockout kinda flies in the face of the Twins seemingly endless commitment to the guy the last few years.
I know you're defending the move and not the player here, and you're right, it's early, but they could've plucked a below average CFer who'll hit .200 out of the pile at any point in or out of season. I think they have to see something with Cave if they're willing to commit any amount of $$ to keep him.