rekoj,
HT Cannabis Cup is probably better than Hempfest. Last fall they had it in Freemont which is a super cool area but pretty much nowhere to park. This had me pissed of a bit and then they demanded $50 for entry which made me start thinking I am being fleeced by another set of 'gangaprenuers'. After I settled down a bit, it was a fun show to walk. They had very good speakers in the main hall and of interest to me were many industry vendors (nice change from 500 vendors at Hempfest all selling the same cheap glass and tee shirts).
Probably the coolest was the vendor area where a bunch of seed vendors, growers, edible companies were all gathered. They all were giving away free samples. Getting to see finished flower from seed vendors was great! If you wanted to buy weed, you could get some great stuff too. One guy was giving away free weed as long as you had WA mmj card.
So the chance to engage with people in the business was nice. They did require over 21 id for entrance into the vending area. As I said, it seemed most vendors were also asking for WA mmj card to do business, but not sure as I unfortunately had no money in my pocket to buy stuff at the time.
So a good time, also more music shows and stuff, but every event cost a good bit of money so the HT money grab is a bit blatant (might be a blessing in disguise as crowd seems a bit more in check than at Hempfest). They also have the awards, but not of much interest to me as all the entries pretty much look the same and winning I'm sure goes to the highest bidders.