Given that professional data is available for free from organizations such as
ESO, I doubt users would like to pay for the privilege.
I have access to their raw image, spectroscopy, interferometry, polarimetry and coronagraphy data mainly from their
VLT and
La Silla observatories.
I've processed a couple of ESO images which has been sent back to them for comments. It gives the opportunity for amateurs and professionals to compare notes.
I haven't used the facilities much as I am much more interested in processing my own data from my tiny 0.25 metre telescope as opposed to someone else's data with the 4 X 8.2 metre VLT.
Besides it practically requires a PhD to understand and successfully navigate through the enormous database to find what you are looking for.
Regards
Steven