I would do it on the basis of waiting in line (for me anyway) increases anticipation and anxiety as well. If they are nervous to try something new, will waiting in a longer line and being anxious for a longer time set them up for failure to go through with riding? Just a thought. If the price isn’t a deal breaker I’d go for it.
Of course I haven’t used it yet and don’t even have a trip planned, but I would for sure get it in your shoes. Any amount of time saved waiting in a line is worth it- that time all adds up in a day.
Also, July is SO hot, any time saved waiting in line out in the sun would be worth it as well.