As a toy line, the vintage line was definitely made to interact with EVERYTHING though. It was all made with only the play pattern in mind, while modern stuff can be made with just that one specific figure's "purpose" in mind, or the vehicle being designed for just one thing.
Bingo. It reached the pinnacle with AOTC's gimmick figures and sculpts that couldn't even sit down, but a lot of stuff throughout the modern era is pretty one-note.
Vintage was a better toy line. Because I liked to be able to put Chewie in the X-Wing. If you have to ask why I would want to, I wonder if you were ever really a kid.