Hey Bo,
MK ceased production (went out of business) last December [

]. The last 'new' kit they produced was the Topstar II electric. The Topstar 110 was the last new kit - available as an all balsa kit or with pre-sheeted foam wings and stab. Their most recent offerings were typical of MK quality, though designs kitted after around 2000 no longer included the excellent accessories we came to expect. I no specific knowledge of their reasons for closing their doors, but I suspect the increasing rarity of contest balsa (which has also become very expensive) may have contributed. Thankfully, I have a nice stock of MK kits to select from.
This past winter I 'built' 3 kits of the MK Skystar 90 (I like the airplane!!). I cheated a bit cutting foam cores for the wing and stab, but recreated all other wood parts. Quite a bit of work. I have one kit built and ready for finishing. I guess I should post some photos.
Regards,
Will