Antimatter, What and How much can I buy for?

Some time during the creation of the universe 13.8 billion years back after the big bang, matter overpowered antimatter. During the early stage after big bang the universe was unstable. Matter and antimatter reacted and obliterated each other in big release of energy repeatedly.

Some how at that time matter won against antimatter and it survived. Since then, whatever we see on planet and around our solar system and space is all matter.