I have an iPhone 6S Plus and Note 4 and just had to talk myself out of upgrading to a Note 5 (because I want to wait for the S7 Plus). So obviously I'm not over anything yet. But I agree, the magic and excitement isn't the same as it used to be and for most folks the cheap mid range phones are plenty.
For me, I'm just not feeling fully satisfied. But I don't think I ever will. I'll always be craving that extra something more uber.
My iPhone is a great phone, I love how fast it is, how beautiful the hardware feels, and how well my apps run. But iOS bores the hell out of me. I really wish I could make iOS mine, not just a screen full of auto arranging icons and a wall paper.
Galaxy phones are fun. I love what Android lets me do with my phone, actually make it feel like mine. But having a Samsung (or LG, Sony, HTC, etc) is also frustrating, because it seems like I'm always 6 months to a year behind the latest version of Android. And if I have a carrier phone that's been out a few months, it's uncertain if I'll ever see a new Android. For your average user, this isn't that big of a deal, for me this is the stuff that nightmares are made of.
I want a Nexus phone. But not these Nexus phones. I LOVE my Nexus 5. This may be the best Nexus phone in my opinion. And the thing I love the most about it is it's made of plastic. I'm not fan of the cheap shiny plastic phones like my Galaxy S2, but LG and (and ASUS with the Nexus 7s) made a really nice soft touch plastic phone that feels very good in the hand, grips well, and doesn't show any scratches. My 2 and a half year old Nexus 5 is still in better shape than my 6 month old Note 4.
I spent too much time trying to get over how ugly the Nexus 6P looks that now I feel like I might as well try to wait for the next Nexus.
I have a Lumia Icon with Windows 10 Mobile on it. It sleeps comfortably in a drawer. I've given up on Microsoft phones (again).