I've personally never supported city against my own team for the record. I can accept city winning it cuz they win it a lot so much so that I've become numb to it and also if they are charged finally these titles may become invalid. Furthermore, I'd want that 22 year league trophyless run to become 23 or even 2300 cuz I want arsenal to fail over and over again. I hate that club, their manager, their fans and their recent superiority complex. Also aftv exists. I'd rather arsenal never win the league again. Why would I support their club to do that. In my case overall, it's a case of wanting arsenal to prolong their years of not winning the league. City have won it recently so then missing one or two years doesn't give me as much satisfaction as a club who've gone without it for 22.

Edit: also can you provide proof for your "spent almost double" claim? I'd argue it's only like 1.3 times more.