Instead of thinking about "moves", I find it more useful to think about it this way:
If you understand the Invariants of Jiu Jitsu (the universal things that don't change), then you can defend a variety of attacks.
To have effective offense, then you also need deep skill in specific attacks.
What do you all think?
JiuJitsu rewards the one who knows a lot about a few moves AND a little about a lot of moves.
I personally fully agree to this quote, and I always thought exactly like this, but had never been able to articulate it so well in just one quote as John (Danaher) did.