Here is a website I use to find prices and what people think about different computers.  You need to buy what is important to your wife.  She might want a better screen for photos, watching tv or perhaps she wants a touch screen.  I would look for 8 gig of ram and a ssd drive with 256 or 512 gb of memory.  

https://slickdeals.net/forums/filtered/?f=9&pp=80&sort=lastpost&order=&icon=23