I bought ...Baby One More Time & Britney in Vegas because I lost the former years ago and the latter was in rough shape. I buy a physical & digital copy of all my fave's albums, so I guess yes. But if you mean have I ever bought two physical copies of an album just because, then no.
I bought BEYONCÉ the weekend it was released digitally and physically two weeks later. I bought Queen of the Clouds back in September digitally and two weeks ago physically.
i bought the physical version of GGGB 4 times. i lost my first gggb copy so i bought another one then i lost that one and bought the reloaded version! and i also had it on itunes!