OP sounds like he feels 4wd is not necessary for him. For me with the snow we get it is a necessity, without it there are several days a year I will either not get to work or home without it. Factory limited slip devices by in large for most makes are not very effective and wear out. With something like a Truetrac you will be far better off than with an open diff or factory offering. If snow is an issue put the weight as far back as possible behind the axle to get the most weight you can on it.