In my humble opinion, it all matters on where and when you scan. I had the same debate when I was deciding which to buy. I went with the handheld because I only have a 20 minute commute to work and I spend more time on my mountain bike than in my car. If you take a lot of roadtrips, it might be worth it to mount one in your car. I take my handheld (PRO-96) in my car and it works fine. When my trip is complete, I can grab the handheld and take it with me. I had a mount in the past and I really don't see any noticeable difference in performance between the two. As far as features, the PRO-96 and it's base version the 2096 have identical features. Good reception really comes down to antenna choice and whatever you plug into a base unit can also be plugged into a handheld. The only disadvantage to using my handheld in the car is that it isn't secured to anything so it can fly around if things get hectic. But, I only don't drive all that much. If I were a trucker or drove alot I would definitely get a mount, until then, the handheld works great in the car.