What kind of queues. Probably because this operator offers the lowest price for a tourist SIM card. Yes, and you can buy it in just a few places, including this one. However, we did well without it, as there is free WiFi almost everywhere
When you are in Dubai, buy the minimum amount of Internet, I took 10 GB for 2 weeks, 5 left, in shopping malls, hotels, cafes everywhere there is Wi-Fi, the minimum package seems to be 6 GB, so buy it