I know "desirable" is in the eye of the beholder, but how rare are these 100 cc twins?

I'd add one to my collection if it came along at the right price.

I'm not sure that they were originally sold here in the UK, although there might be a few imports around now.

Neat little bikes. They seem pretty rare. Not sure how easy it is to find parts... they were not nearly as popular as the Enduros when they were new in my memory..

Thanks guys!

I've had 4 of them over the years, even had two at once. Neat little bikes, piston port 100 twin. I'll find some pics. Fastest one was the worst looking one a mate rescued out of a skip bin & gave to me. Now i want another one lol--thanks for reminding me. The pic i sometimes use up here of a blocked header pipe was from one of the two tidy ones i had.

My best friend had a new blue one I would buy one today if I could find one I really like the cigar tank as we called it 

Yea I really think it’s a cool bike. 
may pull the trigger on it.  It’s small and wife probably won’t notice it amongst the other 5!

Well did you buy it? Maybe your wife can ride it

I will update you soon!

Update without pictures 
finally the weather is stellar now 
got a totally complete one with surface rust on cylinders and frame.  Chrome and paint really good. Nothing missing and cables and gauges really nice.  

Ripped into motor and found major but repairable failure.  Left side seal was popped out, right side piston had a burn hole, left side rod bent.  sort of violent but crank and cases and cylinders and one piston solid

! Wonder if Mr RT or anyone else has seen something like this.  all parts sourced. Just wanted to share the failure which I found interesting.  And the plug on side with bent rod looked brand new.  
this is such a cool little bike.  I am largo and spec says 69 mph, I will be happy if it makes it to 50