I know this is obvious, but the battery doesn't have to go in the glasses. When the glasses are just a wireless monitor, it opens up all sorts of possibilities for belttop computers. Obviously, the glasses still need some power, but the battery can be very small, comparatively. Put the weight and heat into something with a mobile phone form factor.
Apple Watch -> $250
iPhone 16 Pro Max -> $1200
iVirt -> $2400
iVirt LTE -> $3200
iGlass -> $600
Now you can charge $3000 for you VR kit, but claim it only costs $2400. Plus people shell out $600 for the glasses even though they don't have the CPU. They just want to look like they do. Or they buy multiple pairs for different locations or as backups or whatever. The profit on the glasses could be huge. Especially if they could replace the Apple Watch for some people.