It's a good idea yes, every pilot should have charts on board, which I do! I've a few thousand hours flying so my chart reading skills are ok. Even so, with some big airports with more runways than taxiways, it can get very 'tedious' especially when you have four runways in a row (24L, 24R, 25L and 25R) I'm sure there's an airport out their with 24L, 24C, 24R, 25L, 25C and 25R. I haven't found it yet, but I'm sure I will, whether it's built now or in future.