Can anyone who has compared the two share their experience? I'm torn on this choice....I probably don't NEED the 3500, but the price difference isn't that much and wouldn't mind the extra payload/towing capacity if the ride is just as good or very close (particularly empty). From a few comments I've seen, it seems like it could be. I know the 2500 coil is a nicer ride than 3500 without air...but that's not what I'm looking for.