[alt text: an illustration of an elderly man and a middle-aged man standing side-by-side and looking into an open garage. The old man is saying, “One day Son, all this will be yours.” The garage is filled floor-to-ceiling with old video game boxes, discs, and cartridges. ]
There are still companies that make physical copies, but typically it’s in limited quantities and sadly I’ve found that most of them (especially one of the big ones, LRG) can be pretty scummy. I think the only two I’ve found that are worth buying stuff from are iam8bit and fangamer.