That Pioneer Unit is an excellent choice if you are going to be going the whole nine-yards in setting up your system. The time correction on it makes a big difference in sound quality and the 4-volts out (I think it has 4-volts, the new DEH-P940 has 6-Volts) adds a lot of "umph" to your amps, and the built-in EQ are a nice touch too. You probably won't be using it much though, most people use the auto EQ and let the machine set up EQ.
The graphics do get old, but you can upgrade them if a dealer has the right equipment and program around where you live (you can program your own stuff too!), but then again, all displays get old after a month or so, this give you more to choice from before you get bored!
As for the Premier vs the normal Pioneer, don't worry about it. The only real difference is that the Premier has a 2 year warranty as oppose to a 1 year warranty. There are slight difference with some of the other stuff, but the DEH-P9300 and the DEH-P930 basically the exact same unit. You usually see smaller mom and pop shops having the Premier, cause it gives you the impression that it is a better line.
Bottom line, get it if you have or planning on doing a complete system, get it. It will be a big upgrade from your 7200.//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif