Yeah, I built my recent computer due to getting that Stimulus check, as many people seemed to have the same idea. So part shortages have taking place. It was annoying as I had parts in my cart to know the total of the build, and parts would keep going out stock, then come back into stock ect. The price of my build kept going up and down due to this as I swapped in replacements. So you have whatever stock most places had in place getting wiped out, and with the Covid-19 issue of course, restock of parts has been taking a little longer since parts are getting shipped in from overseas.
As I said, check out the NZXT Bld site, there is nothing wrong with going prebuild if it seems like building one is a little too much. It’s not that difficult though, as it’t like putting together a lego set for the most part, though screws can be tricky from time to time. It would be pretty difficult to break any graphics card. They are build pretty strong and snap in rather easily. The advantages of building one is that you may save a little more, you get the knowledge of actually building one, you know every part that is in your piece since you bought them, and there is just the satisfaction at the end of building one yourself.
My current PC is the second PC I have built. As far as monitors go, the sweet spot many aim for with PC now is 1080p at 144hz allowing 144 FPS or 1440p at 144hz. This allows for even smoother gameplay and you can watch certain videos that show the difference this provides over 60 FPS. I bought a 1080p IPS monitor only a few years ago, so doing an upgrade really isn’t in the card for a monitor anytime soon right now for me at least.