Bitcoin has almost zero utility besides Store of Value and for most basic Bitcoin investors, that's good enough. At some point, a subset of those investors will get bored of Bitcoin and start venturing into altcoins.

Most will invest in altcoins but never actually use it for utility. But for those who actually care about technology and focus on utility will realize that Bitcoin really doesn't do anything unlike many altcoins.

I suspect investors who only care about profit will mainly stick with Bitcoin because it's a Store of Value and doesn't need to have any other utility. But those who use technology will migrate to altcoins.