“Oh, I love my Rosie child
She got the way to make me happy
You and me, we go in style
Cracklin’ Rosie you’re a store-bought woman
You make me sing like a guitar hummin’
So hang on to me, girl
Our song keeps runnin’ on…” Neil Diamond, Cracklin’ Rosie
What do you think a “store-bought woman” is?
…it’s a guitar dude.
Bottle of cheap wine.
…or not.
Love your knickname, lady! Very cool! 
Wasabee’s idea seems doubtful, as a guitar is referenced earlier in the song.
Some rural types use the term “store bought” as a term for “fine quality” or “superior”, as opposed to home-made–makeshift.
I’m sure Mr. Blue Sky is right.
I honestly meant to type wine but since I had just read the guitar line of the song… I typed guitar. I am dumb.
That’s okay. Go out and get yourself a bottle of cheap guitar.
I always got the impression she was a woman who bought nice clothes/dressed up/liked nice things rather than making her own stuff/being the down home type…
Darn it, how come I can’t go to the store and buy a woman around where I live?
Hm, Silicon Valley? They make spare parts there, though, right? 
$69.95…give her a try!
IIRC the Rosie referred to was Lancer’s Rose(sorry, can’t do the accent mark) wine. The bottle was a brownish-red, crude pottery vessel.