Great question! And the answer is "It depends." That's because eSIM costs vary greatly depending on a few factors ...
(A) How much data you need
(B) How long you want to use it
(Data packages are valid for specific lengths of time, so you'll pay more for 30 days of data versus a week's worth of data, for example.)
(C) The cost of data in that part of the world
It's actually pretty fascinating to see the price differences in various countries, and that often reflects the local infrastructure. Some areas have a terrible signal and limited connectivity, which means data is a precious resource.
The great thing about aloSIM is that you can browse around, compare prices, and know exactly what you'll be paying before you purchase a package. No surprises!