> Because in most jurisdictions (including the USA) it is illegal to download a backup ROM of something you own.
Not a lawyer but I'm suspicious about that: first of all, I don't think downloading is actually illegal, it's either sharing stuff without license or keeping stuff without license that are generally illegal (which is why viewing movies from an illegal streaming website is legal in most places even though the website owner is clearly doing illegal stuff).
Then, if you have a license and the law in your jurisdiction allows personal backup, I think you'd have the right to actually store the thing, so I don't think you'd be breaking the law here.
Not a lawyer but I'm suspicious about that: first of all, I don't think downloading is actually illegal, it's either sharing stuff without license or keeping stuff without license that are generally illegal (which is why viewing movies from an illegal streaming website is legal in most places even though the website owner is clearly doing illegal stuff).
Then, if you have a license and the law in your jurisdiction allows personal backup, I think you'd have the right to actually store the thing, so I don't think you'd be breaking the law here.