Boy, it doesn't take me long to reply, nearly 2 years
No, it has not been made in many years. BCS and Jari USA both manufacture one. I believe Jari is pretty much a dedicated sickle mower and BCS sells a walk behind tractor that has attachments, one of which is the sickle mower.
I found my TroyBilt 2 years ago and it has been well worth the $300 I paid for it. The weak link appears to be the plastic parts that are used in the hand clutches ( R & L ). OK Hardware carries an aluminum replacement for $30.