this question doesn't really make sense as osu isn't p2w game. How much have you actually had to spent to play osu? Humans needed to evolve for hundreds of thousands of years, technology, infrastructure and healthcare needed to be developed. If we are speaking from monetary standpoint, its hard to approximate but it definitely took more money than i can count to (think quadrillions). But of course in this time humanity developed other things than osu and tens of billions of people have existed total in this time frame so it would have to be split. After i did some very rough calculations, every human on earth ever has to have contributed/spent about 67.3$ for osu to happen.
I have bought supporter a few times and just resubscribed. I think about $20 total. For the equipment I use a Razer Deathadder Elite and Steelseries QCK but I have them from League of Legends.
I already had CTL-472 before starting osu!, so I didn't need to worry about that stuff. Some time ago, I bought a month of supporter for the profile banner & bio. Also, gonna get an external keypad sooner or later.
So, the estimated cost could be around 20-30€ depending on the keypad I'm getting.
20$ Armageddon wireless mouse 14$ Logitech wireless mouse 32$ Gaomon S620 Tablet 25$ Rexus Legionare Mx 3.2 Mechanical Keyboard And some shits 7$ of keyboard and mouse (actually idk why i bought this things) Total : 98$ I've spent my money just for osu lmao
like other people, i probably won't buy things just to play osu! with them. i like things i have to have a universal function, regardless of where i use it.
then again, i'm getting an external trackpad because i don't want to learn mouse, so...
...that's gonna be about $70, $80 if i bought it earlier.