Allowed number of subdomains

[kuty]

Customer wants to have bigger number of subdomains (+150) created on his account/domain.

Should I allow him that, or so many subdomains will make problems with the server performance?

Thank you.

[Jonathan]

I wouldn't think there would be a issue; I mean, 150 ACTUALLY used
domains is kinda silly but for some set ups I can see using that many.

Point being you can issue a unlimited # of subdomains, so go wild n' krazy
I'd just add on a small surplus charge for every so many extra subdomains