The McMinnville UFO Fest returns this May. Speakers lined up include Donald R. Schmitt, (Friday night's speaker) author of UFO Crash at Roswell, etc. and hypnotist Yvonne Smith, (Saturday morning) who's worked with abductees. The third speaker has not yet been decided.
I'm mildly interested in Smith, but, unless the as yet unannounced speaker is someone way groovy, I don't think I'll go this year. The expense vs. the line-up doesn't even out.
But if you decide to go, have fun! The rooftop bar at Hotel Oregon and the parade are worth the visit, as is exploring the unique interior of the old hotel. More info here.