who knows? It sells OK worldwide.
The pattern has been to introduce the 600, then follow it with the updated 12 a year or so later.
(OK the 400 came out first, followed 5 years (?) later by the 600, then a year later with the 12. The 6 was restyled in 2000, followed by the 12 a year later. Whether or not we'll see either a 650, or a restyled 12 in the US is uncertain, but, Suzuki likes to share body parts with multiple bikes, so I'd guess a new 12 will show up somewhere.)