It's already at over $3000. I cannot fathom why anyone would pay that kind of money for a modified iPhone. Even if it's a business expense for a YouTube channel with a decently large audience, what are you going to do with it? It looks like its creator has already monetized the concept decently well, so I can't foresee this bringing a lot of publicity to anyone.
And at the end of the day it's a used iPhone (that's what, $300?) with a different connector...