I was a very regular skier for about 25 years, up until about 8 years ago (Mammoth mostly, other Western resorts from time to time). As of that time my boots were a pair of Salomon SX-91s (the old rear entry boots). I can tell you that prior to the introduction of the original Salomon SX-90 boot, I always had trouble with different boots I tried; I have high arches and a slightly (very slightly) wide foot and I remember finding that the SX-90 (and then the SX-91) fit me very nicely and comfortably. So as of 8 years ago I was still using my SX-91s and was very happy with them.
Over the past 8 years I have only skied on 4-5 occasions and it's always been on rentals.
This year I've been skiing a few times and the bug has hit me again and I'm ready to dive back in (still focusing on Mammoth and other places out west). I've devoted a lot of time trying to learn all I could about the new skis, because clearly my old 205 GSers won't really cut it anymore compared to the amazing stuff that's out there now and I am definitely going to try to get some new ones this season (I'm looking at the various "mid-fats" like the iM82, Cold Heat, Magfire 12 etc.). However, I put on my old Salomon boots the other day and they still fit me quite nicely, which leads me to wonder (given that I haven't done any research regarding boots):
What do modern boots do/have that my old Salomon's don't? Should I be looking to buy some new boots to complement the new skis I am hoping to buy (recognizing that I do have a limited equipment budget), or will my Salomons continue to do the job? It would be particularly interesting to hear from someone who has transitioned from the old Salomon boot to the newer boots (or someone who is still skiing on the old Salomon boot).
Thanks in advance to all who respond.