This is so really hard to say special cause its difficult to explain specialty in short word
Some of them are given below:
Its a type of currency which know as peer to peer currency and this permit to send and receive money without help of broker or third party involvement
Every bitcoin holder can review their account information after sending money or receiving money from their account.
After all kind of transection bitcoin recorded sufficient proof of every client and account holder through different facilities.
Buying and selling process is so much easier than other currency
I think above mention quotation is sufficient for proving that how much special the bitcoin is.
For me, the best reason here is. I think It's because bitcoin is the first every crypto currency in the world. A lot of other people tried to make their own crypto currency or digital currency but Satoshi Nakamoto was the first one to be successful with the technology of Blockchain and was adapted by many other crypto currency today. We can say it is special because without bitcoin, there will be no crypto currency ... And because bitcoin is the first digital currency and has a price that makes everyone so interested, as you mentioned it, transacting with bitcoin is very easy and discounts for transactions are also not so expensive. plus in my country that can be redeemed in my country's currency is just bitcoin ...