I'm not entirely sure that is all correct.
How about, when Bachmann bought out their model, it was a huge leap forward from the previous Lima / Hornby model, so, knowing there is a part of the railway modelling fraternity who have just got to have the latest / best version of a model, they could afford to hike up the price and take advantage of the situation. Now Hattons have bought out their model, Bachmann are dropping the price to remain competitive - but reading reviews of Hattons model and seeing the problems Mick has had with his, I should think the people at Bachmann are quite pleased they only dropped £5 and sales are probably still good.