Don't overlook this small shop in the Lego Movie World area. I believe this used to be a Friends-heavy shop but now sells "everything awesome" - lots of Benny / Emmet / movie stuff but one of the main attractions here is the large unicorn display with a diorama for its innards, which are common at Lego retail stores but always Awesome to look at.
The other main draw is that this shop does engraving on the mini boxes. I don't believe you can do this at the Big Shop or any other retail outlets inside Legoland. The on-site personalization makes a more useful and personal special souvenir than a name plate, keychain or a name mug at the Big Shop. If there's a long wait, you can choose to pick up your goods later.
Also, after having been to the Big Shop out front, I appreciate the smaller, less noisy, more theme-focused shops like this one throughout the theme park. At Sea Life aquarium or the Deep Sea Diver attraction, the merchandise are very ocean/water activity-based. Wu's Warehouse in Ninjago land carry mainly Ninjago stuff, etc. In my old age and as a shopping non-enthusiast (ask my roommate how old my clothes are), this kind of tiny-shop boutique shopping is more my thing.
In short, the store might be small but still Awesome! read more