Unfortunately where I am, the population density isn't enough to support anything like that. There is a travelling computer fair that drops in a few times each year, but I've not been to the recent ones. The photos they post just seem to be endless laptops and dubious branded low cost stuff. Seems a waste of time to even go...
I did find a charity computer recycler I've been intending to visit, where they train people for free and use money raised from sales to sustain that. Donate some old but serviceable stuff (C2D era desktop, even some newer laptops that are not worth the effort of personally selling), and was wondering if they might get some unusual items at times.