Agreed. But is the difference enough to promote the sales of a Valkyrie bobtail at a higher price point? Not in my opinion. Still, I like your thinking.Well if you discount things like checkering and carry cuts, aren't all their 1911's the same?
The Valkyrie also has the recessed crown that I don't believe the Guardian has. The sights are also different (although I prefer the Guardian's 3-dot sight to the straight 8 sights on the Valkyrie, but those can be pretty easily replaced).
The Valkyrie retails for nearly $500 more than the Guardian. Those little improvements do add up. That said, the Guardian is still a fine gun and I'll probably have one someday.
Regardless, DW will take custom orders, so I could probably get a Guardian built like a Valkyrie, or a Valkyrie with a bobtail. I would just expect the cost would be considerably higher for a custom build versus a stock build.