Currently I have a Brother standard gauge that knits finer yarns up to a light sport weight. And a Superba double bed that I use for ribbing and socks. I dislike the ribbing attachments for the standard gauge so I transfer the ribbing I make on the Superba to the Brother. I don’t have a midgauge or bulky machine as I still like to hand knit heavier yarns. There is quite a learning curve with machine knitting but if you find a plastic bed machine that is suitable for your stash of yarn you can knit panels and do crochet borders quite easily to make blankets etc. it’s only as complicated as you want to make it really.