Yes, my primary use is photography. It keeps a roof over my head, so everything else is secondary. I need great resolution, a wide color space, plenty of contrast and the ability to regularly ensure that my monitor's colors are calibrated. I'm not into gaming so having the highest refresh rate isn't a primary need for me.
So whether it's an Apple monitor that meets my needs or another brand, I don't care. But a lot of brands don't meet my needs because they're not good enough at the qualities I'm looking for.
I was excited to hear about the Samsung Viewfinity 5K 27" monitor, but it looks like there are some issues that have to do with its "smart" software and controls that rub me the wrong way. Would love it if they (or Apple) released a "dumb" monitor with great specs and no frills, but I realize they're not going to do that for their own business reasons.