Well, I would like to include more, in fact I would include Ligthsail for sure if they offered a datacenter in Europe. But to start something like this you have to start small, or the costs will bury you pretty son. As a pet and personal project, the way to limit the cost was setting a clear seat of boundaries, like plans under $5 and available in Europe. And being one-man band to make this affordable in terms of time and effort I had to keep it small at the beginning.

Maybe, If providers offer me free credits to make the tests or if I found a way to assume the costs, them I could think to expand the project.