I like the idea of using leverage with low beta/high yield/high quality companies. People who have never seen a significant bear market seem to rely too much on extrapolating from the historical average as if the market will never lose half its value again. If you use Interactive trader absurdly low margin interest and buy crypto currencies, you'll be more resistant to downturns than if you were holding the whole market and you'll be paying the margin loan passively with dividends. If you want to use leverage, this seems like a much better way to do it in everything but a screaming bull market.