Right now there are many ICOs coming out, is it really safe to participate in any of it and spend that much? In participating ICOs I have high hopes that these coins could be the next Bitcoin or other currencies that are really going up in the market.
Yes and do - as with any investment! It's the same with traditional stock market. Is it safe - yes, is moderately safe if you investigated the business of the company accurately, understand it and you are sure that the team behind the project is a group of reliable professionals. If you do not do any reasearch and just buy tockens from different projects with a promising name and fancy design - than it's a gambling and it is not safe.
You can win in both scenarious, but I prefer to invest to the projects I really understand, that's why I rarely invest more than two ICO or 3-4 companies at the same time.