Bitcoin is the biggest reason behind the hardness of buying because the price of Bitcoin is gradually increasing.
Ya price is the one of the reason for hard to buy a Bitcoin.Now the price of bitcoin is around the value of 7700$.Before a 3 months the price of bitcoin is only 3000$.Many invested in bitcoin ,now it's double the value.It's the reason for reduce of bitcoin buying.But still you can inverse in bitcoin to get profit ,since the value will raised to 8000$+.
Do you really think OP is talking about the price of Bitcoin being why it is hard to buy? Obviously this isn't the case. They are suggesting that it is very hard to buy Bitcoin in general, because maybe there aren't many places to buy it in their country, or perhaps they are a complete beginner. Don't you remember when you first started using Bitcoin and how hard it was to buy? When I first found out about it, I thought it was nearly impossible to buy.