I never sell once you sell you out of the game i borrow against them.
Only problem is that there is no good lenders so that's why i have started lending myself and Im working on to build my financial empire thanks to cryptocurrency.
Best Ever assets created are btc and other volatile coins those are best collateral.
By borowing against assets it's great way to benefit owning assets without selling them.

The best collateral are BTC and best money are USDT.