And how much does it cost to process one of these applications ? it doesn't cost £0
You don't know if they would apply anyway, I'm sure any checks they do on a normal visit visa would be more detailed than a priority one due to time restrictions.
I posted before about Tier 1 visa abuse, highly skilled immigrants working in takeaways, students who came here to work and not study, and now - for a fee of £600 - someone who intends to overstay could get fast tracked here within days
Why do you think so many visit visa's are refused ? HO does not believe they will go back