The value in the Ritter knives is the blade shape. For what the Ritter knife is meant for, the blade shape is superior to the Barrage (and I have both a 581 and 586). I wish it came with G10 scales instead of Noryl, for the added rigidity, but Doug is trying to keep the price down to make it more affordable for more people.
What are the changes the Ritter shape makes? Just looking at it compared to a 551/6, it looks like the flat grind goes up higher, the thumb ramp is a little longer, the drop point more robust with more material behind it, and the edge might have a bit more belly to it. Reading the spiel on KW, this is supposed to be more of a harder use, outdoors version (literally a "RSK": Ritter Survival Knife)? So from that context, I can definitely see wanting a stronger tip and more of a thumb ramp compared to the regular "Modified Drop Point" Grip. The 552/558 are not any thicker than the 581/586, and the Barrages have a pretty darn high flat grind too, so I don't think the Ritters are going to outslice them by much, but I'll give you that the Ritters have more material around the point and a thumb ramp - as you say, for certain applications those can be quite valuable.
Again, I absolutely love Benchmade's M390. No complaints there, whatsoever. And I think the Grip is a great working design - it fills your hand well, those scales really do grip well, and they can stand up to an awful lot. So believe me, I'm really not trying to knock the knife, and I think that anyone who gets one with the intention to work with it will not be disappointed.
The point I'm trying to make is this: the regular 551 with 154CM was something like a $75 knife before the new price enforcement. I am not convinced that a different blade shape and M390 for $140 make it "a good value." I'm not even trying to say that it's a bad value. Just that the cost of the current 552 is almost a 100% increase over where the 551 was this time last year. For me, that definitely gives me pause.
(also I'm sorry for your sake that we're not talking about a 950 in M390 right now, loony.

)
Edit - Look, if you need any evidence of how artificial the whole pricing thing is, the 950BK-1401 is currently up for less than a regular 950BK at enforced price. Limited run, better steel, $3 cheaper than a 950 and $16 cheaper than a 950BK. 35% off retail vs 15% off. Either the dealer is intentionally bleeding themselves or they think that the proper price to move them at the speed they want and make the profit they want is seriously that much below where the enforced price would put them. That just seems insane.