It really depends on how people are used to race. I have a small layout when compared to the tracks that digital clubs in Europe have.
Here is the layout pic:
The table is roughly 5.5m x 2.3m. Lane length is 25.3 m. Lap times can be around mid 8 sec to low 7 sec depending on the class we use.
We race
magless using slot.it P6 rubber and we do not go crazy on RPMs: SSD chips output is around 14V DC so we currently like to use "low RPMs" motors like the standard carrera & scalex, the 16K MRRC, and the NSR 17K Baby king.
We have plenty of speed to challenge us but still the cars are easy to handle.
We mostly run endurance races of 20 min up to 30 min.
We are manly 5 guys meeting every weekend: so we do self-marshaling. This means that when one deslots, he has to track call (this is all handle beautifully by the RMS we use - RCS64). However, to avoid that people go crazy on track calls, each drivers has an allotted amount of track call points - or damage points as we call them in RCS: every time you track call one point is taken from your pile. Once you are out of damage points, you need to pit to repair your car: repairing time is customizable; we are using a 20 sec repair time which means losing at least 3 laps.
I can ensure you that once people get close to running out of damage points they will start driving more carefully.
Anyway, we have been doing this for a couple of years now and most of the races we have long stints (up to 50 laps and more) where no one track calls so the flow of the race is not interrupted.
Of course, the flow of the track and the lane changer placement play an important role in all this.
About digitizing cars: I get a kick out of it! I have hundreds of cars but it is not like I am going to put chips in all of them. I usually have some ready to go and if I want to try something new, then I pick the car and put the chip in it.
I am also an analog racer (wood with copper braid): sometimes I want to try one of my analog car on my plastic track so by just removing the power base and putting in a half straight connected to a controller station (a controller plug connected directly to the power supplier).
So this means I can use my analog controller as well.