I have a Fates, and do not (yet) have a grid.
I’d +1 what’s being said above - there are a lot of great scripts for the platform, and some of my favorites don’t even use a grid at all. IMO, Otis is a great example of a gridless, yet totally playable script.
Also, as a fellow developer, I’ve found that most scripts are pretty short to read and easily modifiable! I’ve modified a few of my favorite scripts (Cranes comes to mind) to take QWERTY keyboard input to substitute for grid interactions
You don’t get the visual feedback of a grid, but you get the interaction without needing to spend too much $$$.