Do I really have to get the deluxe?

I am looking at the Panther Point mobos. The P8Z77 Asus ones.

A while ago I ruled out Sli and crossfire. However when trying to decide which of the motherboards that were the best. I couldn't avoid considering the Deluxe. (P8Z77Deluxe).

I already decided to get a 750W Psu, that is Sli and cross capable.
So leaving the door open for future Sli looks real interesting. However the Deluxe mobo is 80% more expensive then a cheaper one Gpu mobo alternative. Such a hard choice!

Any suggestions? Suggestions for a more expensive build or not?