>> 2 of those are nearly 3x cheaper than the 1x 38" curved display
For about the same price as the 38", you can get a pair 27" Dell P2715Q 4K monitors which will give you more than double the resolution of that 38" monitor.
I have a pair of P2715Q's mounted side by side in a "v" shape (not as good as curved, but does the trick) and it works fairly well. Of course, having no bezels in the middle where the monitors touch would be nice. The main drawback of the P2715Q's is that they don't have HDMI 2.0 inputs, which means your system needs two DP outs that can support 4k/60.
To me, it's the ability to put my current "focus window" exactly center what makes the curved screens so attractive, with the 32-38" size range always feeling just about right to me. My neck starts aching if I have two screens, making me end up using one as the focus screen and the other as support. While three 27"s in a row seem slightly excessive "screen wall" to me, but some like that...
I guess it really depends on your workflow. My own preference is to use my left monitor for source code and shell windows and my right monitor for browser testing. That does mean I tend to spend a significant amount of time looking to my left.
For about the same price as the 38", you can get a pair 27" Dell P2715Q 4K monitors which will give you more than double the resolution of that 38" monitor.
I have a pair of P2715Q's mounted side by side in a "v" shape (not as good as curved, but does the trick) and it works fairly well. Of course, having no bezels in the middle where the monitors touch would be nice. The main drawback of the P2715Q's is that they don't have HDMI 2.0 inputs, which means your system needs two DP outs that can support 4k/60.