No, this is substantially worse than the late 90s.
In the late 90s there were a lot of very premature IPOs and a lot of money raised for bad ideas, but very few of them were total cranks or scams. I could in fact buy pet food on pets.com-- it just wasn't a viable business and wasn't well executed. The CueCat was a horrible business idea but CueCats actually did exist and you could in fact use them. (I used to have one! Kept it for teh lulz.)
Most ICO projects are complete and utter vapor consisting of nothing more than a stock bootstrap web site and a "white paper" that could have been generated by a Markov chain model using crypto and decentralized systems buzzwords. A few have a bit of code online that doesn't work. Of those that have shipped most of them are unusable, and of those that are usable I am only aware of maybe one or two that are at all interesting. Of those none are very compelling and none are things I couldn't do without.
There are literally no hits in this space. It's all junk, and most of it is outright scams. I'd be surprised if a single current generation coin ever actually delivers real ROI.
It pains me to say it too. This stuff is very much in the "I want to believe" category for me. But I've gone through them and that's what I see. It's depressing.
We've discussed an ICO here at ZeroTier and I've consistently come up against it. There is so much fraud here I don't want to go near it even if there might be good use cases. A lot of capital is sloshing around but I have both ethical and pragmatic problems with participating in a system so absolutely rife with fraud. I also don't particularly want to deal with SEC investigations.
Cryptocurrency on the other hand is useful. We have used Bitcoin to pay overseas contributors for open source work and consulting. The function for which block chains have become most known is so far the most useful and real.
The only upside is this: I find it satisfying that the scammers are gaming the "serious math/CS papers must be written in TeX" heuristic by writing their buzzword salad white papers in LaTeX. I hate lazy prejudiced heuristics like that.