My reaction would be WOOOOOOOO. I like watching the games, and if the team is actually competitive it makes doing so more enjoyable. If the C's make the playoffs it will be on the backs of Rondo and their young guys, meaning that we have good young talent that will get better or increasing the value of our trade assets.
I'm not a fan of the purgatory argument. Not when we will have multiple picks and a ton of cap space to improve the team. To stay in purgatory a team needs to not improve.