I can relate to that because they do feel very different from a standard "Fender" style bass. The fact that the neck is barely thicker at the body than it is at the nut makes it feel different. The heavily painted and varnished neck (and varnished fingerboard) makes it feel different. The shape of the neck and even the pickup cover (if you leave it on) causes it to feel different.
The other thing I've noticed again and again is that almost every single time I see a Rick in a store, it's set up terribly - with almost unplayably high action. I don't know why this is. My guess would be that maybe most guitar stores don't know how to set up a Rick and don't want to risk screwing it up given its price tag.
A proper setup is everything. And I agree, most Rics in shops are in desprate need of a proper setup. The same is probably true for many that are in players hands as well.