The 1911s that last a shooter's lifetime don't get 1000 rounds a month for that duration...
Kyle Defoor put 200,000 rounds through a G17 not that long ago. Lots make it over 100,000.
Considering the average gun owner who actually shoots still probably puts less than 500 rounds a year through their most used gun (real rounds, not e-rounds, I know everyone here shoots at least 500 e-rounds a month while e-losing their e-virginity at 13 to the smoking hot 18 year old babysitter and winning about 100 e-fistfights) that works out to about 200 years of service for most people.
To put round counts in perspective, the 1911s that the FBI HRT used (and to a very limited degree, continue using, although most of the HRT units are also shooting Glocks now) were very good quality 1911s...and they needed total rebuilds (often including frame replacement - so new pistols, essentially) generally around 25-35,000 rounds.
So a Glock 17 will outlast the vast, vast majority of pistols. If a Glock 17 is not enough durability for you, you could look in to a USP...that would be the only pistol I can think of that might have a longer service life, although I don't know that it does. It may.
Effectively, if a G17 is not enough, neither is anything else.