JB HiFi in Australia is selling SE 245's for $688 (online list price) but when you check the serial number, they turn out to be 2-3 years old.
I already have a Standard 24, (as well as a Singlecut Trem I got for $445 sold as old clearance stock this year), so I'm holding out for the 2017 245.
The discounted SE's are all display/floor stock in a clearance sale; & though it's a good deal, I really prefer the look of the 245 in Cherry Sunburst; the ones in JB are all Tobacco Sunburst; nice but not as nice as the cherry, & I think if I'm forking out more than $500 I want it to look just right.
All that said, I'm sure the 2-3 year old 245's are all fine.
I've had no issue with the Singlecut Trem, & that turned out to be 4 years old. All it needed was new strings.
Guess what I'm saying is, PRS SE's are a bargain at any price, the build quality & QA is higher standard than other brands, & if the worst you have to deal with is rusty old strings & the odd scratch, it comes down to personal choice whether you go brand new or old stock, or even second hand.
Whatever the case, so long as it hasn't been abused by someoene, you won't be disappointed buying an SE.
If I didn't already have 6 guitars, I'd be jumping on a discounted 245 that's old stock, but I'm hanging out for the cherry, with the PRS signature on the headstock.