BUL TAC vs EDC

I posted the same question or the 2011 sub a bit ago but wanted more opinions. I'm looking at buying a Bul and I'm stuck between the 4.25 of each, it would be a range toy and MAYBE carry. Is the TAC worth the 400 more than the EDC? The only differences I can see is the EDC is an aluminum frame with short dust cover and the other is steel with full rail (26.6 oz. vs 32) slightly lighter trigger and comes with one more mag and the mags have a +2 base pads. Is there any other difference besides those and is it worth the extra or just get a EDC?