Also depends on if WDW is offering a discount at the same time. Say WDW is offering a 25% discount, Orbitz is offering a 15%. You can get the 25% on Orbitz and stack their 15%, thus getting a potential 40% discount. It's a crap shoot if this will happen. I just booked for March with Orbitz, their discount for CSR was the same as Disney with my AP discount, Disney's discount for BW with my AP discount was less than Orbitz. So I booked BW as a less price stacked 15% discount, got orbitz bucks. I then booked my two nights at CSR (doing a split stay with 2 night CSR then 4 night BW) at the same price as Disney with my AP discount but added my $46 orbitz bucks, thus pulling it down below Disney. That doesn't always work out. Same trip with Disney with an AP discount would have costed me about $600 more.