Looking around I see there has indeed been a significant reduction in pricing of Hager protective devices. It's not very long ago that Hager didn't offer a single module SP+N RCBO - something which 'budget' brands had offered for several years prior and which Crabtree (an electrium brand of which you take a dim view, without any explanation as to why) had offered for quite a few years before that - and when they did introduce the option it was accompanied by a considerable price tag.
I'm not sure what exactly constitutes a 'budget brand' other than lower prices. I can think of a few low priced brands producing very good exclosures with flush mounting options and all other features expected of a domestic board. Am I missing something here or is there something about all 'budget brands' for which they should be overlooked?
What Hager lacks where 3ph distribution is concerned is a sensible means of avoiding accidental shorting of phases. I have no issue with working on Hager boards and would be happy to spec one, but we aren't exactly talking state of the art and I fail to understand why the brand attracts considerable praise. Consider how long ago Square D overcame the issue and, despite your reservations, the IKQ range continues to be widely used under the Schneider banner. Other manufacturers have managed to avoid exposed 3ph busbars in different ways and I'm not sure that plastic push on covers warrants the 'premium brand' status afforded to Hager.