I'm pretty happy with how things turned out this gen.
I jumped into consoles big time, and that wound up expanding my horizons past what had been mainly AAA PC games, into more RPGs (JRPGs and SRPGs being two genres I play a lot more), Playstation exclusives (stuff like Catherine and Persona have made Atlus one of my favorite publishers), and Nintendo and their exclusives (Fire Emblem has, similarly, become one of my favorite franchises).
I also wound up enjoying the merits of portable gaming, and while I seem to have missed it in its heyday, I'm very VERY happy with my Vita, Switch, and 2DS, and they all let me play more games of a greater variety than I used to. Chipping away at games while at different places is something that I've found extremely handy, and it certainly helps me to finish more games quicker. .
The other thing I was able to start doing this generation was build up a physical collection. I've always enjoyed looking at game pickup threads and collection videos, and now I'm slowly building up one of my own, which helps because I've always wanted to have a collection of *something*, so having it be of games since I play and enjoy them so much is fitting.
The other good decision was subscribing to Gamefly, which has saved me money and let me try more games that I wouldn't have otherwise, and helped me buy fewer games that I wind up not liking. Being able to rent a title, keep it if you like it, and send it back if you're finished and/or don't like it, is extremely handy and convenient. I just wish I'd subscribed to the service sooner. Instead of having to wait a year or two for price drops, I can play more recent games, and that's something that's of course handy.
The big regret I have is in getting the Switch so early. It's not that it's a bad system, or that i don't like it, but I got it early on in its life when there wasn't all that much to play, and wound up not using it that much for a year or so since I was waiting for the games to come out. It would've been better to just wait till the magic number (5 games for me) hit, and then buy the system then. It was a bit of a lesson though - I'd rather there be enough games to play, and for me to get a good deal on the system, than be there ASAP. Hopefully I'll keep that in mind for when the PS5 comes along.