Though in my mid-30's, i also had a electronic project board, i don't think it was "150-in-1" more like 60 or something, but i remember the different modules and patches, the circuit diagrams, it looked like like an old-fashioned switchboard. also had a jr. chemistry set (not the Gilbert one you could make cool stuff with, they had gotten rid of all the "good stuff" by my time) and a microscope kit w/ the preprepared slides and a few blanks, w/ one special "pond water" slide for live specimens.
Grandpa was a scientist, so i got each one as b-day or xmas present. I never did end up at LaRC or sandia though, that math stuff was just too darn hard...heh
Give sorrow words: the grief that does not speak
Whispers the o'er-fraught heart and bids it break.
-William Shakespeare, Macbeth, Act IV, Sc. III