I'm doing the same thing after being let down on the promise of face value tickets.
The prices have jumped significantly this morning and supply has reduced drastically.
There are a couple of things going on here, either people who've been waiting all week have started buying and thus prices have risen, or, brokers have started removing some listings to give the impression that supply is drying up, personally I think it's a bit of both.
Yesterday was the bottom of the market and there were some really good deals, especially in the lower end zones, you could grab tickets for well under $2000, they are now closer to $2500 for the same seats.
I can't really advise if things are going to get worse or better, but I've just taken the plunge just in case they go higher.
Hope you find a good deal