I'm curious, why did all the "old guard" absolutely refuse online? Blockbuster, KB, Toysrus - these were all before my time, but did they just think oh no, we d

I'm curious, why did all the "old guard" absolutely refuse online? Blockbuster, KB, Toysrus - these were all before my time, but did they just think oh no, we don't ever have to bother with this, people will always come in the store?