Exactly. Not only does it take a while to fully explore the large maps, but it takes a long time to actually complete the whole game as well. Games like Grand Theft Auto V and Red Dead Redemption 2 also have a huge amount of achievements that aren't always easy to get. For example, I'm trying to get 100% for Red Dead Redemption 2 and it involves a lot of difficult challenges that are extremely time consuming as well. So, yeah, you need a lot of time so it's always better to buy it and keep it.