Your right about that Tony, the new BWH/BCH would want to be 1,000 times better than the old ones. Well for $50 they should be! As far as the Powerline louvre vans go, I don't think they have anything on the OTM ones. Same could be said about the Trainorama 48 when they arrive I reckon. All good and well however to say it's good entry level rollingstock, but for a little more $$ you could possibly get a lot better of a model.
The original ones from the PL/India stable were to put it mildly Atrocious, the same as all the other models made from there. The aspect with the previous BCH/BWH besides the so far mentioned items, was the BCH had the side plated version that is representative of the few wagons that received the full replacement side panels for a short period during the steam transition period. These wagons had partial rusted sides completely replaced with a cover panel over the old panels with the rust areas cut out. Those repairs were carried out in loco depots that had the facilities such as Enfield in 2 shed, to keep boilermakers in work as the depot headed towards closure. In all there were estimated to be less than a couple of hundred done, out of the whole class.
For the BWH they simply added a crude roof to the BCH model & used the same body, which was totally wrong for any of the BWH as none of them were ever repaired in that manner, unless they have retooled the bodies especially the BWH, anyone buying them will be getting what in affect is a fantasy model.
When they were released originally, the price was only the equivalent of $3.00 per wagon less than the High Rail versions. Seeing that the High Rail versions of these models in the fertiliser coding can still be purchased for the equivalent of $40.00 each, I think I would rather repaint & redecal those for a better model, & still end up with money in pocket.