Although not in the same league as Matt, I concur based on just the economics (for those looking to others for service). Ebay regularly sells these asian movements for well under a 100 dollars (generally 80). Gen ETA 2824's can be regularly had for 170 dollars from one vendor I deal with frequently. When I was looking for a modder to service some of the problematic movements I had acquired over the years, one in particular (of dubious reputation) was asking over a 100 dollars just to service each.
Seems these are almost becoming throwaways unless you can learn to do your own!