Compounding superbowl and name recognition: Their referral incentives are also quite transparent and competitive compared to other quite large registrars that have clauses like, and this is paraphrasing, "payouts of $75 dollars must be accrued within 3 months or will be forfeited" or "must refer $300 dollars of signups per month".
I imagine this causes referring 3rd parties that read small print to align their product with GoDaddy than a competitor.
