Great question, Hothead. And the answer is basically "Who knows."
When you get down to the nitty gritty, we all want this phone simply because it's the "Next Best Thing". We are all salivating over ICS, but we have no idea, really, what it will be like. Will it be revolutionary, or just a facelift? We have a lot of speculations, but in the end we will either be pleasantly surprised or not-so-pleasantly surprised.
Many of us are on OG Droids or DXs that are dying, so we're going to need a new phone anyway, and this is the cutting-edge in the Android software world. We have no idea if it's cutting edge in the hardware world.
Some of us have phones that are perfectly fine, but just want what's new, shiny, and exciting.
But are you missing out if you don't get it? Probably not. In a few months most new phones from Android will be running ICS with better hardware specs. It's a fast-moving industry.