Are there any alternatives?

Yes. The most direct alternative is MSI’s own Raider GE76, which is also available with a 12th-gen Intel HX processor. The ROG Strix Scar 17 also comes with the same HX processor and is considerably cheaper.

　　The Razer Blade 17 is also an alternative for around $1,000 less, though it doesn’t have an HX processor and is focused more on portability than raw power.

　　

How long will it last?

With the hardware inside, you can expect to use the GT77 Titan for several years before replacing it.

　　

Should you buy it?

No. Although the GT77 Titan is certainly a powerful laptop, you can get something that performs just as well for significantly less. The GT77 Titan is all about over-the-top abundance, and it comes with a price tag to match that goal.