Do you regret how much money you've spent on games or in game items/currency?

Yes and No. I have played a lot of free games, and in these free games they have offered me thousands upon thousands of hours of content, which I felt inclined to give them some money, as they have given me fun for free. But overall I would have rather not spent $800 on a F2P game, but those little packs add up. $20 here, $20 there, and next thing you know it's $800.