32" UHD or WQHD? Flat or Curved?

I want to replace my pair of 24" monitors with a single 32 to 34 inch monitor. It must be IPS, not VA. I'm attracted to the sleek look of a curved monitor (WQHD: 3440x1440). UHD (3840 x 2160) will give me more real estate, but suffers the problem of being taller and flat.

I largely use my computer for software development and amateur photography.

My budget is $500, maybe $600. Please give me opinions about curved vs flat. Also product suggestions. Is BenQ especially good? Thanks!