The 2.0 utilizes several things. It has many durability improvements, and improvements that allow you to drive harder and faster. Keep this in mind when saying that it is not "that" much better.
Most guys are not using the "full potential" of even the 1.0, with that how can you evaluate the "full potential" of the new truck? I'm a fairly new driver and I know this. I get the truck because it's new, more durable, etc. Guys who are top level racers in their region or area, even our national best are the guys who could "honestly" say if it's better or not.
These trucks have barely been in your hands for a few days yet racers are making comparisions already. How do you in just a few days have it all worked out, broken in, set up perfect for your personal ability? I just think it's much to soon to make that call. I would give it a few race weekends maybe more to get it all dialed in to my liking before I made the call.