I've been collecting cels on and off since I was age 15. In 2018 I recieved some cels back signed by a voice actor I had written to back in 2011- at the time I was writing to musicians and actors for autographs, but I was suddenly inspired to get cels autographed (I could have just sent cheap photos, but it's a much more powerful feeling getting the original animation art you see on screen signed).