Has anyone ever seen one in Thailand?

Yes.

Patak road Karon beach Phuket.

2002.

And right beside it was a Honda XL 650 Transalp.

I did take 'photos, but have no idea where they are.

My interest was piqued as I was riding a Kawasaki KLR 650 at the time.

I have seen quite a few more Transalps here, but no more Dominators.

Edited because I cant spell

I have not but they are there.Almost all of them without a green book though.

http://www.mocycdd.com/mocycdetail/5044/

http://ddpromote.com/id-52ddffd74fba0bb204000000.html

was my first bike in Europe. Never seen one here though

When visiting bike weeks I always like to walk around looking at the parked bikes to spot the odd one.

Never saw a 650 Dominator, Did spotted a few Transalps and old tired XL500/600's

Prefer to see a Norton Dominator !

There was only ever one Dominator and it was made by NORTON

Some nice custom NX650's: http://chopfeed.com/top-5-honda-nx650/