Here's my thoughts for the OP. For me, I'm a bit of saw nerd and have owned most every major brand over the years. I was replacing the AV rubber mounts and servicing my MS361 just this morning, and recently added an MS650 to my fleet, just to see how it compares to my MS660.
I firmly believe after working and operating so many of them over the years, that you just can't beat a PRO Stihl saw, additional costs removed from the equation. I have 8 "pro" class saws currently, and not one of the Dolmar, Jonsered, or Husqvarna's has the build quality of the Stihls. Don't get me wrong, I like Dolmars, Husky, Jonsered, and Echo saws, but over time, little stuff breaks on them more often than it does on the Stihl's. And having torn almost all of them fully apart over the years, the Stihl's are just better designed, better made, and use higher quality components. I greatly enjoy bucking with a Husqvarna 372XP, but it still lacks in a few areas for build quality, IMO.
I'm modifying a Dolmar 6400 with a big bore kit right now, as I like those saws as well. They fit me great, and are tough to beat for the money. But from the factory, they're heavier and not as powerful in the wood as a 361/362. Even though on paper they look comparable, in use, they're not even close. I've had the chance to run a 361, 362, and the 6400 back to back and side by side in big oak, and the 361 narrowly beat out the 362, but they both kicked the Dolmar's butt. And I currently own 3 of the Dolmars 6400's, so I like them, but when working on them, they aren't as well built as the PRO Stihl saws.
If you use it enough over they years, you'd probably have better luck with the Stihl, IMO. Is it worth the extra $$? That's up to you. All I can say is having worked on, owned, and modified several saws over the years, Stihl's PRO saws always stand above the other brands for quality in a lot of little ways.
A lot of tree professionals argue between Husqvarna and Stihl nowdays, and it's whatever you like, dealer support and preference, etc.. They'll all cut wood, that's for sure.
Because of the high costs, I ran several other brands of saws for many years before stepping up and buying my first Stihl PRO saw, but can honestly say that I think there's just a big difference in a lot of little things on the Stihl's that make them worth the money, that don't show up on paper or when holding them up and comparing them in a store.