Addiction is a real problem, but I don't think the absolute dollar amount is a good way to tell. There are some people that don't even notice $450 a month. While there are also quite a few people that spending $20 a month would be detrimental to their life.
I was also thinking: what if those people are perhaps kids of super rich parents, for whom spending $450 on mobile games is nothing compared with their other expenses?
How do we distinguish addicts who cannot resist spending money they can't afford to spend, from genuinely super rich people for whom any number smaller than thousand is effectively zero?
