I saw it at Auto Show too. I went Thursday and went again on Friday. The only Royal Enfield I would greatly consider is the Scram411, it consistently gets impressive reviews. Yes, the new Himalayan is promising but they don't even have a price yet.
The best bikes(that I am interested in) I saw at the Auto Show were:
Royal Enfield Scram411 - 176,000 Baht
Triumph Speed 400 - 158,000 Baht
Triumph Scrambler 400x - 180,000 Baht
Honda CBR 500RR - 220,000 Baht
Honda Hornet 500 - 220,000 Baht