Why is MoonPay so expensive?

I've been looking into MoonPay as a potential option for buying cryptocurrency, but I've noticed that their fees seem to be quite high compared to other platforms. Can you help me understand why MoonPay is so expensive? Is it because they offer a more user-friendly interface or do they provide additional services that justify the cost? I'm trying to weigh the pros and cons of using MoonPay and would appreciate any insights you can provide.