ditto to what eldeguello said.....
you don't get something for nothing. If you want screaming velocities, you pay for it in shortened barrel life... but... how many years will it take you to shoot 1500 rounds? And, rebarrelling is pretty cheap... just look at it like putting new tires on your car.. the faster you drive, the more frequently you replace them... And if you're really in love with your barrel, when the throat gets too worn, just have a gunsmith set the barrel back a few threads and rechamber... you lose about a half inch of barrel length, but you save about 150 dollars... in the grand scheme of things, that's pretty cheap....

"Progress, far from consisting in change, depends on retentiveness..those who cannot remember the past are condemned to repeat it." Santayana