I see what you're saying, and agree totally that it's not an event, however the only way to improve as a driver is by doing lap after lap etc. Lap times are improtant too, and grabbing a Performance Box, which can provide lap times and race lines are an excellent investment for the racing enthusiast.
I've done lots of No Limits events, and certainly would recommend them to anyone getting into Motorsport , but for me time on the track is more important, so tuning days are great value for money