>>103582926339, old shuttle launch pad. I never got it because I grew up with some back of the shelf sets, and only learned about it years after it was discontinued. Plus I didn't get to choose them, I always got whatever was on store for the right price during birthdays or christmas or other gift dates. Getting it now would erase the magic, plus it's expensive new or with bad stickers if used, plus the dreaded yellowing.
Expensive dream sets were mindstorms 1 and motherfucking barcode.