Re things to spend money on, why not add in cosmetic items that don't affect gameplay at all:
* Rent your team's endzone for a week, changing the image to whatever you want (subject to approval!)
* Sponsor a team's stadium name for a season
* Add a custom emoji to the official Discord for the duration of a season
* Get a custom role / colour in Discord / forum
* Buy special trophies for the forum (like that I Am Rich iphone app years ago)
* Buy a second Dotts pack per day for like 5 times the price
* Rent your team's endzone for a week, changing the image to whatever you want (subject to approval!)
* Sponsor a team's stadium name for a season
* Add a custom emoji to the official Discord for the duration of a season
* Get a custom role / colour in Discord / forum
* Buy special trophies for the forum (like that I Am Rich iphone app years ago)
* Buy a second Dotts pack per day for like 5 times the price