But every excellent investment looks like junk.
(Bitcoin has once again taught us this ancient lesson)
Bitcoin in the early 2009 may have looked like an uninteresting asset to even invest in but still I will not agree with your concept that every excellent investment looks like a junk.
We have actually seen in years many junk projects that actually had the appearance of a junk/shit/scam project and eventually did not disappoint in turning out to be what it initially appeared to look like.
To invest in any new project you have to first assess the source behind the project, what utility does it provide and is it any thing with a long term perspective in view or it is some test run project.