I keep saying… Lifetime deals are not worth it.
They were featured on Mashable with a $25 Lifetime deal that included a 1y domain.
1 year and 11 months later they are closing down.
When users pay monthly for your service, if they ever stop paying/using it you can just free up the disk space, and that “user slot” to reduce the WHMCS and cPanel price. When you are running Lifetime deals you simply cant without starting a new company and closing the previous one.