Tried creating an account multiple times, but it never sent me the validation email. Wanted to try but couldn't ever login.

Fiddlesticks. Seems I had a misconfiguration the email relay. This should be fixed and verification emails sent out.

how much did the domain cost?

350k; https://dnjournal.com/ytd-sales-charts.htm. Although according to this, https://appraise.net/view?domain=Free.ai I got a deal.