The DX5 is not a computer radio nor does it have model/trim memory.
Right, it's pretty much the equivalent of your Conquest but on 2.4 gHz. I have two T6XAS, very similar to the T6XA, and I like them a lot.
I'd never expect to see any of the 'big' players introduce anything like them going forward. The manufacturers are convinced that the market wants bells and whistles, and they are probably right.
The only way to get a "heavy, solid feeling" radio is to buy an old one. The Futaba 7UAFS uses the same modules as the 9C, so it can easily be converted to 2.4 gHz. It has mechanical trims with trim memory. The regular 7U does not have trim memory.