I'm a big fan of Samsung phones, having had the original Galaxy Note (pretty unique at the time), and now have the Galaxy 6 Edge Plus (lovely, lovely phone), and it'd be nice to have an '8 to go with my '8 - perhaps a black one in a red leather case, like this

).
However, in practical terms, I'm unlikely to buy one anytime soon for several "sensible" reasons:
1) I currently have four perfectly serviceable Android phones (The Edge, an LG G3, a OnePlusOne, and and HTC M8), and it now seems that the genuinely useful improvements in functionality have tailed off in the last few years. I have bluetooth, HD video/stills, the ability to cast from my 'phone to my large TV, lots of storage, etc, so I'm not sure what value I get from buying the "next shiny product"
2) If I was buying a new phone, I'd be more tempted by another OnePlus (like this -
http://www.trustedreviews.com/oneplus-3-review ) at half the price of buying an HTC/Samsung/LG
In fact, what's more likely is that I'll change my main 'phone plan to a SIM only one, for the reasons given about, and save myself somewhere between £300 and £500 a year