I get the point it's at the same price without the cable as the previous psu with the fused cable, but this one has a major advantage over the previous PSU.
You can't have it both ways, they either ship it without for x bucks or you ship it with for x+y bucks. You seem to want x+y for x bucks and Apple aren't in the business of selling you something at the price you want, never have been, never will be.
What I can tell you is that they'll be selling a lot less of the PSU's for this version of the macbook than they ever have for the previous versions because it's as two parts and most sales for previous chargers will have been for failed cables, maybe this is a factor in the pricing of the new charger.
No its not x price
X price was previous brick with a fused cable
So the new brick without a cable should have been either sold at X-Y price (y being price of cable) or include the cable in the box
I again am super glad the cable is detachable from brick, but that does not mean should pull such a stunt off