I guess it depends on your intended use. If you're going to change the tires and that's it (and you like the luxury items on the Sahara) then it makes sense. If there's a little voice in the back of your head telling you that you might be doing more mods than just the tires, it'd probably be less expensive in the long run to bite the bullet and buy a Rubicon. It already has most (all?) of the things that you will want for off-road use. Maybe ask yourself "What does my ideal Jeep have on it?". If the answer includes lockers and a lift, you will probably be better served with a Rubicon. If it's a DD that happens to see use on fire roads and go to McLean Ridge once a year, then you'll be more than happy with a Sahara that has good AT's and tow points.