I think the goal is win now, screw the consequences. And I am ok with that. Drew and Company will only be this good for so much longer. Bring in whoever you have to. A 2nd rounder will take time to come along, so go with the sure thing.
And, the cap will go up in a few years. But, you are right, if the bill does come due one day, it will likely come due after Drew is retired and when it will be time to rebuild with high draft picks. That is unless we find our next great QB in the next few years before Brees retires.