You're paying for the work that it took them to adapt these games to run on Windows 10 and 11. If you don't want to pay because you aleady own older versions, you don't have to. But if you can no longer play the older versions on your computer that answers your question.
That said, there are so many issues with these games that I would not buy them until and unless they fix them.
The work to adapt them to Windows 10 and 11 really was minimal. I and others have paid hundreds of dollar for each game with all the packs.
It's greedy to ask for people to pay again. Especially for Sims 1 which really isn't a very good game when you compare it to the later Sims games. After watching people play it on youtube, I don't think I'd even want to play it. Sims 2 still looks interesting though.
