When I was 1st. introduced to BITCON, what I liked the most is DECENTRALIZATION concept and that there is no - man in the middle - or media to perform a transaction. Besides, it provides some kind of PRIVACY and ANONYMITY.
BITCOIN Network is pseudonymous, which means all transactions data are not fully PRIVATE.
Government and Chain Analysis Companies can identify addresses, the amount sent/received and even which wallet being used.
PRIVACY Coins such as PIVX, ensures all transactions DATA to be hidden.
THANKS to the zkSNARKs - Zero-Knowledge - Technology they apply on a Proof of Stake Chain.