G.I. Joe toys at Target: fighter jet
These toy sections aren't for kids, they're for us, the parents.
Target price for a brand new Conquest X-30: $24.99
eBay price for an identical 80s version: (comes with Cobra Rattler -- can't find one by itself for some reason)
I thought this jet was so cool when I was about 10, but I don't think I ever had one of my own. It was the successor to the original GI Joe jet that was an F-14 tomcat by another title; this one was based on some NASA prototype plane or another.
There was also the big blue Cobra Rattler based on the A-10 Warthog that was pretty fun. Maybe they'll start selling those again, too.