[tastybites]

There is little space for a lot of choice in the tools market

Apparently not, as anyone in the enterprise software world can tell you. There's plenty of room for lots of shitty choices, almost all of which generate millions of dollars of "value".

I do agree with your final conclusion though, that it takes a higher level of competence and business acumen to start, say, an ISP than another run of the mill social network.