Like I aimed for (and failed in doing) last year I would like to focus more on adding games for older systems to my collection.
I would particularly like to expand my PC Engine, Mega Drive/Genesis, Saturn, and Famicom Disk System collections, and I would like to get a hold of an Amiga 500/600/1200 computer as well. Also, I'm always on the lookout for 80's tabletop and handheld systems.
Last year I found myself almost solely buying games for the Switch, which is great and all, I love that system to death, but this year I will try and focus on other stuff as well. That being said, two of my most treasured purchases last year were the PC Engine Core Grafx Mini and the Astro City Mini, so it wasn't all Switch.
Oh, yeah, and I'll try to make a serious attempt at digging into my backlog this year as well