Hey Evo II.
Like yourself, at one time I also wanted a Jem7v like -crazy-. I worked in a pub kitchen for months working up to 12 at night cleaning sinks to afford it.
Well eventually I had enough and I bought one, it arrived and I was ecstatic, I thought it was great. (This was around 2005, you may even be able to find the thread I made on this forum when it arrived).
Anyway, a few months later I decided to buy another cheaper guitar to take to University and back as I was beginning a music degree, I thought I'd get a simple no frills guitar (fixed bridge etc,) and ended up going for an Ibanez RGA121.
The guitar cost £300 second hand, compared to about £1150 for my Jem7v second hand, basically, I found that I MUCH prefered my RGA, the Jem only came out of the case for the next 12 months only because I thought I HAD to play it, I gave it MANY chances to see what it was I prefered about my RGA, in the end it just boiled down to the mojo that the RGA had with me, and that the Jem just didn't feel right.
What I'm trying to say is, it doesn't matter how much you spend on a guitar, or what it looks like! I couldn't give a crap about what colour a guitar is these days, let alone inlays, if it feels right (and you'll know when it does) then that's all that matters.
I'm not saying don't follow your dream and buy the Jem7v, but be wary that it's just a guitar, and just because you see Vai playing one and lots of other poeple going OMG JEM7V BEST GUITAR EVAR LOLZ!1 doesn't mean it'll be right for you.
Follow what everyone else (pretty much) is saying - get down to a guitar store that has nice staff who are willing to HELP, explain you are looking to upgrade to a guitar and you want to find one that feels right for you and play EVERYTHING, take as long as you need, it's your money. If you don't find anything you like after trying a good selection (from many different stores if necessary) then maybe go for the Jem..
It's great to play as many guitars as possible, because then you'll understand your own instrument better and what you may/may not need to get certain sounds in the future, but it's also important to have an idea of what's right for you. How old are you by the way? Regardless of your age, $2000 is a lot of money to anyone, so it's important you think with your HEAD not just your heart.