I think the fee is working then tbh, you're not supposed to create a sub if you don't think it's worth it :)

You can also consider it to be an investment into SN since this is obviously the early days of territories where subs which might become huge one day are still up for grabs.

So if you think SN is going to blow up in the following years, you might want to reconsider if 100k/month just to try out a sub is really not worth it :)