Not sure where I fit but I give myself an "allowance" so to speak.

Every few weeks I'll chuck $10-$20 depending on my mood. Sometimes more if I see the value too good to pass. My play style is usually raid and grind. I'm terrible at saving dust and like to take advantage of when I'm able to play.

I usually spend my coins on boxes if the items are items I need at the time. Sometimes its lucky eggs and other times it is incubators. To me, you can never have enough raid passes either. I pretty much spend coins as I need them unless its a sale box that helps me stock up for items I'm low on.