Now Btc is in drop-down step. The exchange difference between today and tomorrow's btc will be 300-500 dollars. That's why cash money means that you have money. Additionally, how to do warehouse purchase with Btc? Although it is being used in some countries, but it is not legal in more countries yet. That's why to have cash money is for your comfort. We'll see what will happen with Btc on future. 
yes you are right to some extent that bitcoin is getting down now but it is not a permanent dump everyone knows that bitcoin keeps on increasing and decreasing the price of the bitcoin is different today so tomorrow it will be change we cannot fix it yet but soon after august first it will a bit stable but I think the bitcoin currency is more reliable and easy as compare to the other currencies for me bitcoin will increase soon.