Man those G and D shapes are HARD to make barred!! I gotta work on this...
I agree 100% and I do not hardly ever make the G shape chords elsewhere nor see a lot of guy using this shape very often.
The ones I see transitioned up the board is the E, A, and C for the most part. The D shape is identical to the C shape once it's made in to a bar chord so when practicing your "D shape" simply realize that you are making a D chord shape on the 1st 3 strings and then making a C.....they go hand and hand with each other.
Same goes for that funky G shape.....notice the A shape inside of it?
This is typically a major break through for most guitar players when they can transition these shapes up the neck and make different chords...same applies for all stringed instruments and their shapes!
To get better at using these shapes force yourself to use them. If you play with some "strummers" that simply make all their chords within the 1st three frets then you should practice making them elsewhere, not only will this help your learning curve it will also add a different sound to the music and make it richer.
If I am playing in a "jam" or with strummers and singers then I fell a single guitar for standard rhythm is enough and I will only try to add in rhythm fills over their rhythm "here and there" and I will do it with a different shaped chord up the neck. So if they are strumming in your old standard D chord then I will maybe go up to the 10th fret, make an E shaped D chord and play the bottom half of it. The cool thing about going up that high or higher in playing rhythm is that absent a mandolin playing rhythm you can add in that sound with a guitar. What I call the "mandolin sound" starts on a guitar at the 12th fret.
Lots of cool stuff to learn about an instrument. Your next step around these chord shapes is to learn the major scale around each shape (your Doe-Rae-Me-Fa-So-La-Ti-Doe)....in essence you will learn how to play your G major scale in 5 positions (locations) on the fret board......Do this and you will have full knowledge of the notes on the entire fretboard and and slide and skip around where ever you want to....that's what the "pro's do"....we tend to think they know something magical but they are simply sliding up to play the scale somewhere else.