Getting both is best, if getting one, get the pdf, print it as needed. Put it in a binder, whatever.
The PDF gets updated if it needs to be updated. @Runehammer committed to keep the core book to one purchase (to his folly, other than the loyalty he earns over the long haul). So, if and when a 2.5 or 3rd edition comes out, and you purchased the second edition…it will just be updated in your drive through rpg library.
The printed page can’t work that way. But there are print on demand services that would allow you to print it in a good edge to edge format at a higher cost.
(I looked for the threads about it have been removed, but I did find hundreds of cool posts)
Get the pdf, print it off as cheaply as possible to have in hand…then decide the route to take.