The only way you will get real maple syrup anywhere is if you order it from LL Bean and take it with you. Even the honey in those little packets are fake honey. I don't think they replaced ketchup with fake ones with mostly chemicals and 0% tomatoes yet.
But what Costco sells by the pint isn't bad... not A+, not the very best... but quite passable (probably C+ grade compared what one might find in backwoods Vermont, NH or Maine). [btw the hole in the wall diner next to the DaysInn in NW LNK (just down US-6 from the Amtrak station), served real maple syrup with their $4.50 stack of pancakes - the wife was pleasantly shocked, and enjoyed every minute thereof
... the rest of the breakfast truly a cut above also, and all for $13 for two people
... have eaten there the last handful of times in LNK - Heather runs a heck of a show: unpretentious, just quality through and through - comes highly recommended... doesn't look like much (she puts the money into the food), but your stomach will thank you. ]