346 is a known quantity saw, out for years, pro saw, very well liked by pro cutters and others, every possible bug or problem has been found and been posted about and fixes, etc available in detail right on this forum, along with modding and getting more performance out of them.. Good aftermarket parts availability. In other words, it would last you a long time, and if it ever needed repairs you could do it yourself and it wouldn't cost that much. There are some left in dealers hands, they stopped production recently as they were bringing in the 550 which is computer controlled.
Your choice, last of the old school that just works, grab one while you can, or be on the cutting edge of new tech, which has had some, not a lot, but some issues, as all new models of anything have.