I saw Bosch makes what looks like a pretty decent track saw but it's not sold in the U.S. It seems, "track saws aren't exactly flying off the shelves in the USA" is part of the reason Bosch hasn't introduced them into the U.S. market. I had previously thought track saws sold fairly well.
What I really liked about the Bosch reviews I read was when joining two guide rails together, you just join them and they'll be properly aligned. No needing another tool to align them. I know Festool rails require you to use a straight edge or some aftermarket alignment jig to ensure the joined rails are straight. Festool even made a video to show you how to do it.
From what I could find, it looks like Festool, Makita and DeWalt have track saws on the U.S. market. I heard Grizzly was supposed to join in. One review of the three ranked Makita #1, Festool #2 and DeWalt #3. It said Makita had more power and did just as good a job as Festool, for about $200 less. But it looks like Makita has a similar situation as Festool when it comes to joining rails but their connectors look a bit longer. Maybe their connectors can keep the Makita rails from being knocked out of alignment as easily as Festool's. I don't know.
To me, the make or break on a track saw is in the ability of the rails to be easily joined dead-straight and maintain that alignment during normal use. According to a number of Festool TS owners, you're better off with one single rail than two or more joined rails because the rails have to be aligned with a straight edge (or the Betterley StraightLine Connector) and then you have to be cautious when handling the joined rails. The few comments I read about the Makita seem to indicate the same is true but to a lesser degree.
If you have been looking into buying a track saw but haven't, why? The price? The rail situation?
If you own a track saw, what brand do you own? Do you use it often, little or something in between? Has it been worth the price? What's been your experience regarding joining rails?