I own a Rush Premium and GZ Pro. I just sold the GZ. It is a great game. But with how many premiums they have made and will make, you will find one down the road. I'm glad I've owned one and I do see what the hype is about. But my play style and love to build value has me giving Rush the nod on this one. At least for now.
...Nothing is bolted to the floor. If it were, how could you slide save?