I used to play WoW back in the day, and I would pay a monthly subscription of 13 euros per month, for three years straight, which is a total of around 470 euros, but I would play 8-14 hours a day almost everyday (for around two years), so in the end it was a good overall value-for-money (although a complete waste of time). Minecraft is also in the top 3, with a licence of 25 euros (while it was still owned by Mojang) and countless hours (easily over 1.000). But the biggest value for money was is Skyrim on Steam: I got it for 1 euro in a sale, around 330 hours spent (playing vanilla on my Steam Deck). I had to quit it cause I could see it going to the thousands of hours easily.

Biggest regret so far is Rimworld: paid full price (30 euros), played less than two hours. I always say I’ll make it worth its price someday, but my backlog is already in the hundreds, so I don’t see it happening any time soon.