Well, investment is such a strong word. Most of the people would probably cut their losses by switching to another asset during correction, right? Now imagine every single altcoin being coupled to BTC, they would be falling at the same rate. I do understand that this would be seen as oscillation in the XRP charts, but with great enough volume it would certainly increase the price of XRP making it even more attractive option.
You are right about the long term investment not being suitable for most, but I think there are individuals who tolerate risk better than others. What do you think about the price staying low for a few months, until there's clarity on the lawsuit? Wouldn't it be amazing to see tens of headlines stating the rapid price increase? Oh well, hopeful thinking.