Cliff's work is invaluable to all. His collection keeps memory alive on uniforms that are part of aeronautical culture and would otherwise be forever lost. It' s not surprising some airlines willingly donate their (even current!) uniforms to Cliff. His site has become a reference.
I am a big fan of Cliff's work. Whenever I talk to a CC who tells me she has an old uniform in her closet, I encourage her to donate it to Cliff's online Museum. Uniforms in closets end up in the garbage can, while in Cliff's Museum they are kept for the future, and for the enjoyment of all.