Extra baggage? Naw....
There is no need in my world to carry an extra keyboard just for keys. I need an all in one unit that has sounds, rhythms and speakers. The 2100 is not "so great" that I need to use it with something else...in fact the ONLY reason that I bought it it because it's "ok" enough to use alone.
My stack days are WAY over. One kb, one stand .... boom. Ready to play.

As for the saying "in like flint".....
I was always under the impression that is was a reference to Eroll Flynn.....
who died IN the throws of passion. So, is it
"In like Flynn" .... or " In like Flint" ??
Hmmmmmmm ......... Anyone know for sure?