I will. It's nice in here.
But seriously, first of all, I didn't mean that Metroid Prime was a crummy FPS. I mean that the FPS genre in general is pretty shaky. There are just so many high quality FPS titles that I pretty much have turned a blind eye to most of the games coming out save for the few exceptional ones that really stand tall. In general, any first-person experience feels a bit bland to me. I still do play'em (Skyrim, COD, etc) but just like with Mario branded games, they're mostly feeling a bit too repetitive.
Furthermore, this was one of the few games I wanted to see. If anyone is going to do a 3D side scroller, it may as well be the developers who really do an awesome job at it. What else are they going to make? A Kid Icarus game? A Star Fox game? They did get a crack at doing something other than Metroid and Donkey Kong, if my poor memory serves me correctly.
I love Retro Studios. I think this is one great title for their plate. Like you and everyone else, I hope they have some other projects that they are giving some attention to. For now, I'm just happy to have this game coming this year.