Yep, the last three consoles I've purchased in the last two years (PC Engine Duo, Sega Saturn, Dreamcast) have all been Japanese variants because they're cheaper than the US counterparts. Has only caused one issue with one Saturn game (Die Hard Arcade) playing in Japanese because it's apparently checking your bios chip. Nothing else has cared.
Duo was ~$180 from Japan with a controller and AV cable. Tested and fully working as described.
Saturn was $90 with power cord and controller from some guy in Denver - supposedly had a working drive but didn't. He kicked me back $20. (moot point because I put the ODE in it).
Dreamcast was $40 shipped "not working" with no accessories from Hawaii, but it was at the main menu in the photos. Drive worked fine after a pot tweak. Again moot because I've got an ODE.
Where you get creamed on these things is the accessories. Dreamcast was especially painful for cables, controllers, memory cards. Was probably in closer to $100 by the time I could actually use it. Despite what the internet will tell you, you're only getting marginal results at beast bleaching those things.