Some people want the real Amiga so they can run real Amiga software on real Amiga hardware. OS4 doesn't bring any of that to the table.
Still other reasons include not wanting to associate with developers who want the user community to die in a fire (Rigo for example). That sort of thing.
Rigo? I am not familiar with this example.
My 2 cents,
HyperionOS4.x is a fanatic religion. You are either a believer, and nothing is going to shake your faith in what ever Hyperion does or says, or you are a disbeliever, and do not wear the Rose Colored glasses that come with every sale of HyperionOS4.x. It is truly a shame that the faithful did not win the rights to the "Amiga" trademarks, instead of only the AmigaOS4.x, as now they are plagued with the fact that other companies can and will sell new Amiga computers that will not run HyperionOS4.x.
I am not against them surviving, actually I wish they would have done a better job and had succeeded in creating an OS and hardware that I could afford, believe in, enjoy using, and would want to buy. But with the current management and the decisions already made, and continuing to be made by Hyperion, I have serious doubts about them continuing for much longer. But, like their predecessors before them, they will hang on to their rights to the name AmigaOS4.x and AmigaOne with a death grip for as long as they can make a dime from the few "faithful" that remain.
Just another sad chapter in the long history of the Amiga. It just has to be made into a movie some day. There is too much treachery, incompetence, greed, betrayal, etc., to miss the opportunity for a great story. If only someone could weave a love story through the middle of it (besides the love of the original OS and hardware), it would be an instant box office success.
What about it Pyromania? Do you think DiscreetFX could make a great feature length movie from the Amiga history? An impartial history would be the only way I would want it to be done. Not some slanted Hyperion propaganda (not accusing you of being inclined to slant it towards a favorable Hyperion conclusion, just stating that I would not want anyone to slant the facts)