The Porter thing seems like a bit of a strange chess match to me. The Wiz and Porter were not able to come to an agreement, so he's out fielding offers. Now let's assume that Porter will get a max offer (from the Kings if not from anybody else) and that the Wizards believe that he will get a max offer. If both of these are the case, then the Wiz would just put down an offer identical to what the Kings can offer and tell Porter to go ahead and sign it, to save him the trouble of going out, finding that max offer, and then matching.
But that didn't happen. Clearly the Wiz did not put a max offer out in front of Porter. They only do this because either 1) they don't think he'll get a max or 2) they don't want to match a max. They almost certainly have to think he'll get a max, so I think they don't really want to match. And maybe that's why they're loudly saying they will match - trying to keep teams from putting out that max? If he's going to get it, and they're going to match...just offer it and save the trouble. If we play hardball here, we might win.