No, if anything it would take me from building to buying. Another $90 puts the build above some of the desktops I was considering.
Yeah... I almost always just get a decent big-box company computer with an OEM OS. Use it for a couple of years and replace it when it is broken.
I haven't built my own computer in 10 years. But I don't have high compute/mem/video needs. For gaming, I use consoles (when I get a moment to play). And our computers usually end up being a place to work on a periodic word document, surf the web and check email. Don't need a superfly video card to do that.
Since you said it is for your wife, maybe you should just grab something prebuilt with a warranty and call it a day?