After talking with some relatives and friends they are going to invest 3000$.
In my humble opinion, the biggest problem is that I need to buy first Bitcoins in order to buy Sumokoins in Cryptopia. I guess the new exchangers that will come in summer will admit dollars and more people will buy. Who knows?

Hi, me too, I've invested some money in Sumo after I saw the spike and after doing some research.
You don't need bitcoins. I've solved it by sending dogecoin from another exchange (cheap transaction!) and bought some Sumo with that. Litecoin would also do the job.

The problem is that we don't have any of them. We are newbies.