I have the regular 226R and the 226Elite, both in .40S&W.
My personal opinion is other than the outward appearance of the Elite (wooden grips, standard Sig night sights, beaver tail, srt trigger, and serrations at the front of the slide) the 2 are pretty much the same, with one big exception, the beaver tail.
For me it made a hugh difference in pistol controllability and comfort. I do like the standard night sights too.
Eveything else is purely cosmetic.
I also find the regular plastic grips more comfortable than the Elite wooden grips. I find that the wooden grips are a little too fat for my hands.
The SRT trigger boggles me though. Sig states that it supposingly acheives quicker trigger resets, but I don't see any noticable difference from the standard trigger other than the srt is hollowed out and physically lighter.
In saying that, I wouldn't even give it a second thought to buy another, just for the beaver tail alone, and you have to admit, the Elite looks awesome.
