It's not exactly Crossfire's fault. They got ripped off by GCI just as much as you're getting ripped off by Crossfire. Its basically a trickle-down ripoff.
The thing a lot of people don't realize is that most paintball companies are not huge, multimillion dollar corporations. Crossfire (and other tank manufacturers) can't afford to just eat the cost of replacing all those tanks. Even if they got their money back from GCI for the tanks, they still have to cover labor to remove the reg and install it in a new tank, and return shipping. They're not making a profit on this, and are probably doing about the best they can do for their customers while still be fiscally responsible.
Yes, it sucks that some people's tanks aren't safe and have to be replaced, and it sucks that you have to pay for it, but its not really Crossifire's fault. If you want to be mad at anybody, it should be GCI.
ďA strong body makes the mind strong. As to the species of exercises, I advise the gun. While this gives moderate exercise to the body, it gives boldness, enterprise and independence to the mind. Games played with the ball, and others of that nature, are too violent for the body and stamp no character on the mind. Let your gun therefore be your constant companion of your walks."