Oh, wow ... thanks for the heads-up! I didn't know about this at all!
As it happens, just a few hours ago I was trawling eBay in hopes of finding some cheapish BPRD that I don't have (probably about 1/3rd of the various minis). Over the last year or so I've bought 2 lots of the minis via that venue & quite liked them for pretty much the reasons you outline.
For some reason, I'm not quite as enamoured of Hellboy per se & so haven't really mounted any serious searches for his solo titles (all I've read is the first TPB).