No, you'll get a cheap piece of cr@p paperweight.
Yikes.

Why so much hate? If you really want an authentic Mac Pro and you have the money then you are perfectly entitled to an authentic Mac Pro. You'll get a very capable computer, with great service, in a nice looking package.
But, if money is an issue then a Hack is a pretty darn good alternative these days. Or, even if money is not an issue it's simply a fact that if you're willing to piece together your own machine and service it, then you can get system for significantly less than a Mac Pro that performs the same, or if you spend the same amount of money you can get a system that performs significantly better.
So, it is true that Hacks are cheaper than Macs. But it's not true that a properly configured Hack is a "paperweight." Mine sure isn't. I've been building and running Hacks since early Intel Mac days and I've never had show stopping issues, the systems have never died on me (and become "paperweights"), and they've always performed the same or better than similarly configured Macs for significantly less. Hell, it cost me roughly $800 to build my wife a system with specs higher than the highest configured iMac Apple currently offers. That's including a 24" LCD. I've never had any problems with any of the Apps I use which includes just about every Adobe product, Final Cut Studio Pro, Parallels, Office, iWork, iLife, iTunes, Quicktime, and the list goes on.
Maybe some people build poorly configured Hacks and don't have the know how (and it takes very little know how to set up and maintain a Hack these days). However, that's not been my experience. In fact, every time I've installed OSX (Tiger and Leopard) on one of my Hacks it's taken less time to install and completely setup than Vista or even XP. Additionally, putting the system together from parts takes about an hour.
In my situation, since I've been building computers all my life, the option is just too attractive economically and with respect to performance. For the record, I buy retail copies of OSX for my installs.
That being said, I'm interested in your argument as to why all Hacks are pieces of crap and paperweights.