You are right. The price of bitcoin is rising because the mining is becoming more and more difficult. When mining becomes difficult, then coins generation is becoming less. Demand of public increasing and supply of coins are decreasing. Experts says if this situation precisest, then there is no doubt that its price will touch 6 figures with in 5-10 years. Celebrities like John Cent and many other investing huge investment in bitcoins. So, these are the factors of rising price of bitcoin.

Hope you will upvote my post.

Regards!
CryptoGuru