There isn't a price difference between the red and green Laser LEDs (but the green ones are slightly brighter).
When your bass was made, only the red ones were available.
On your bass, changing the front LEDs would also mean redoing the inlays or refinising the bass to save them, either way, a costly proposition.
We can add side LEDs without refinishing or even refretting, but you'd never want laser LEDs on the side.
Maybe we could add a superbright green LED somewhere else - maybe on the body or possibly at the very end of the fingerboard, below the 24ths fret.