Tragedy has struck!!

Oh no, one of the worse possible things has happened.....my Nook has died!!  It was working normally, then I went to turn the page and nothing.  Tried to turn it off, and nothing.  SO sad that my beloved Hemingway has died, he has served me well through the years.  Now, I must decide if I want to keep with the Nook or switch to the Kindle.  I have both apps on my phone so not all is lost, just wondering what is the better choice now.