Unlike the 90s, a lot of startups today are actually making things and making money hand-over-fist, it's insane. Too bad for the press they're obscure business models and located in places like Lansing MI and you've never heard of them, but there is tons of money to be made.
On the other hand, social networks, big data, and now neural networks are The Big Thing, so everyone relentlessly reports on them, throws money at them like the hottest stripper in Vegas, and gets resoundly disappointed when they don't live up to people's astronomical expectations.
Besides, if people generally only spend $X a year on stuff they see advertised or sold online, how much money is going to be sunk into online advertising, big data, and all that other junk until you're basically getting one dollar earned for every dollar spent?