I'd also say it's an excellent tool one can use to loose over collateralized Bitcoin.
Using Bitcoin to incur debt seems incredibly retarded to me, but to each their own.
I plan to remain 100% debt free and live continue living simply.
If you sell under $45k of long term cap gains Bitcoin a year ($90k if you are married) there are no taxes at all. I live on less than 14k a year, because I have unshakable conviction in the long term value of Bitcoin.
The price is going to $0, because fiat will soon be worthless.