Quoted from ectobar:

All of those prices are too high.
I think current price on a pro is around $5600. Sometimes you have to pay shipping which is around $400.
Are you getting any kind of extra warranty or support with the purchase? Will they do some type of setup for you? Is there tax on top of those numbers? (You can usually get out of paying tax through an out of state distributor)
Since your new, you really need to know that when you get a game it's absolutely going to break at some point, and most likely several times. Steel ball flying around a bunch of plastics, it's the nature of the beast. So if this place is going to provide some type of extra support, it might still be worth it to you to buy from them. The reality is though, if you're going to be in this hobby, you need to learn how to fix some things.
I guess the other thing to consider is the current climate of the world. I don't know what the operating status of the distributors is. You might not really have all that many options at this point unfortunately.
You should also really consider buying used. You can get a GB pro (and other newish pros) for around $4500 used. Assuming you keep it in decent shape, you will be able to get most of your money back if you decide to sell.