dev workstation: i7 vs Xeon, does it make a difference ?

Well I just updated from a 6 year old computer to an off the rack i7 and although there was a bump in performance the bump is enough that it’s a comfortable experience that I would feel it a wast to want more. For me fast is fast enough and if anything if I wanted to spend more money I would spend it on a really comfortable office chair with a built in seat warmer and ice chest.