I gave it another thought, now I see that the monthly upload is too small for us.
The thing is, we provide very detailed maps at very low GSD, rather big areas, it's not given that the customer needs all that, but it is there if needed. In an more active week this fall I generated >250GB of geotidff+DEM.
Should we go for the 100GB version, very few customers/target areas would be able to access their data at the same time, and 20GB monthly quota would make it impossible to upload more than a few flights anyway. I just guess we are a bit ahead of the GSD most people are happy with.