I keep saying the change at Tamworth has exploded in recent times. The days of just me and a few others on the platform is long gone. I don't know if it is a result of the earlier Avanti problems, cheapo fares, differing routing suggestions on planners and/or new customers but the numbers have really grown. I suspect Nuneaton is the same but have no real experience of that change.
It does feel like most passengers are going to MKC or Euston rather than intra Trent Valley journeys.
Agreed - as a regular user ( several times a week at present) additional capacity is very happily accepted. Even if just for the EUS > MKC section!