Yes we f course. Though I don't know the country your are residing but if it is in my country, you can start bitcoin investment with just $2 or even $1. And if you have a good bitcoin investment plan, then you can invest the amount you can afford to invest every month or weekly. It you are investing with $2 or below then you to invest in long term for a minimum of 15 years. And that should give you a good amount of bitcoin. If you are investing with $2 monthly, it is $24 for a year and that should be 15 years, it should be $360 and it is a good amount of money.

But I know that if you are investing with that example amount, there are times you can make or purchase more that amount so the acquisition price will be unknown.