I don't think there is anything wrong with buying an 8+ today (depending on price, of course).
My iPhone 8+ still works great. I like the screen size. I like TouchID. I like the telephoto lens. It is still plenty fast for me. To me, spending $1000+ on a phone when my current phone works just fine.
I'll wait until next year to consider an upgrade. It could have TouchID under glass, higher refresh rates, reverse charging, 5G capability, etc.
I'll just keep my 8+ until a compelling reason makes me decide to get a new phone.
My iPhone 8+ still works great. I like the screen size. I like TouchID. I like the telephoto lens. It is still plenty fast for me. To me, spending $1000+ on a phone when my current phone works just fine.
I'll wait until next year to consider an upgrade. It could have TouchID under glass, higher refresh rates, reverse charging, 5G capability, etc.
I'll just keep my 8+ until a compelling reason makes me decide to get a new phone.