Why many DJ's use Serato over Rekordbox?

After speaking to hundreds of DJ's who DJ live in clubs, at home, and across multiple teams on Twitch it seems that the main reason they choose Serato over Rekordbox is because firstly the subscription it has, but secondly because its at 33rpm only.

If you want more users, get 45rpm implemented because I don't see you changing your subscription based pricing.