Oh god at least like 2-3K across various games. I have a bad habit of quiting the second I miss out on exclusive content that I wasn't able to pull x.x
In total I probably spent around ~$2000 on gacha games. Do I regret it? Not really, other people spend their money on shopping for clothes, food etc. but I choose to spend mine on 2D waifus. I think it's good that you're not addicted hahaha but just spend on whatever makes you happy!!