We have been going for years. Got my swap top there and lots of other goodies over the years :)
April 2 and 3. here is a flyer if anyone is interested...
http://www.lincolngemmineralclub.org/2011-show_flyer.pdfSomeday I may have a booth there but for now I just go oogle the rocks, check out tools, ask questions and watch the demonstrations with hopes of learning something.