@Garry ... I've got nothing against disposing kit
via auctions (and anything is better than simply binning good kit, in my view), but I think it would be better if there were more alternatives (more auction houses, or other options).
I've got absolutely nothing against Mike Hilditch and his Merry Band, by the way, but simply believe that competiton is healthy for all concerned. For example, I wonder why the NHS doesn't have its own auctions ... or better still, its own Equipment Donation Centre (or "Clearance House")?
I'll admit to being "out of the loop" these days, but there used to be a few other equipment auctions, but I'm not sure if they have stood the test of time. Hopefully someone will come on here and update us (me).
The trouble from the "charity" point of view is that they are bidding against dealers - and, almost by definition, charities (of the type I imagine) are generally a bit strapped for cash!
So, it they're not careful, folk involved in sending kit to those in need around the world end up being "fund raisers", instead of "kit fixers" (van drivers, container packers, and what-have-you).
