It's very difficult to compete with other currencies. If no investors shows up this project is dead.
You should be bothered about this.
Not about that:
"there is more likely they will bail on you if there is no financial gain"
No, exactly the opposite, if over half of the witnesses stop posting at once because it is not profitable anymore then it is dead and needs to be hard-forked to get up again. Read the whitepaper, please. Stop spreading uneducated opinions.