I think it's the right choice when you don't want high risk then you don't do it more because we know that investing in new projects must be prepared with the risk later, but if the right choice is on a popular coin then it's a real investment.
In the new project we must need deeper research on what they plan in the future, and even then we must be really sure if you want to invest it, if you are sure enough invest enough, put money there at all.
If you have studied the projects and see a perspective in it, then you can invest in it. But this should not be a large percentage of your deposit in order to reduce the risks. Moreover, if this is an investment at an early stage of project development, then the likelihood of getting a large profit increases significantly. Personally, I rarely invest in new projects, and if I invest then small amounts. I have not yet had the opportunity to buy tokens on sales.