Monero technologically is undisputed, but price is not so competitive with some others projects such as Cloak, ZEN, KMD..which are more interesting for investors in terms of return of invested funds.
I would not feel good to have my investment in Cloak and others, especially if they are not cryptographically sound. XMR is a gigant, development, mathematical research and community wise compared to those currencies.
So for bigger investors it is more safe to place trust in Monero instead in simple forks of Zcash which have trusted setup done by unknown developers you have to trust in they wont print coins.
For some it may feel like other coins could give more ROI because their price is lower now and could go higher, but this is wishful thinking and not smart investment or how big money moves.
I see XMR going much higher then it is now, especially because the inflation is going down strong gradually. I think smarter investors right now accumulate XMR very slowly, a sudden strong outbreak of the price will confirm this.
