I've never tried parker, but my MIJ ibanez rg470 is noticeably better quality (in workmanship etc.) than the current korean ibanezes (EDIT: that i've tried: sz320, rg321mh, s470), and my rg was only £400 (5 years ago, to be fair)!
I'd hang onto the parker, and BKP it, unless you hate how it plays or something.
I know i'd rather have fewer quality guitars, than loads of average ones.
I haven't tried that many korean guitars, though, so i may just have tried "bad" ones.