I've been buying and selling quality guitars for over thirty years.
The top-of-the-line DeArmonds that are being closed-out at GC and Sam Ash are superb instruments. You may read about my experiences with them on the DeArmond/Guild forum at the Fender discussion site, extensively posted under the name, "Sorehand."
The top-of-the-line DeArmonds are much better than the lower-priced models and are even produced at different factories indifferent countries. The most expensive ones are produced by Cort in Korea and wired at Fender in Corona, where most of the problems occur, such as the utterly brainless use of .022mfd capacitors on the 500K tone controls and some reported crossed wiring.
The M-77T I have is possibly the finest guitar I've ever owned and I've owned between two and three hundred, almost all Gibsons and Fenders, over the years. It's a _great_ guitar. It's what I always hoped a Les Paul would be but never was in the many examples of that guitar I've played.
I am somewhat less enthusiastic about
the X-155, which is not to say that it is a bad guitar; it's not, but it doesn't get the jazzy tone one would expect from a box like this, largely due to the use of the otherwise excellent DeArmond humbucking pickups. Putting a .047mfd cap on the tone controls helps quite a bit, but the DeArmond 2K pickups would have been better choices, in my opinion.
At some of the loss-leader prices that have turned up in the past couple of months, these DeArmonds were definitely deals of a lifetime.