It is not a speculative coin.
They buy it and keep it for years, for a lot of growth.
If you can spend a lot of money and wait so much, then it will be a good investment.
If not, either forget about it, or try to trade on cheap coins.
And for this you need to be able to read graphics.
Not much only $500 I can invest now and I can hold it for 2/3 years. If I don't have much money then I will not invest in Bitcoin? I'm not clear.
Bitcoin is a really long term investment. I'd suggest you to put a part of your deposit in bitcoin and make a deep research to find 2-3 promising projects to trade on. The main word here: research. Read more forums, websites, analytics, books, read again and again. And a personal advice: be patient and never take part in panic sales)
Many many thanks for your advice.