If you're saying the market still has further to fall that's guaranteed money betting against it. I have companies like Facebook, Disney, Google, and others I plan to hold for years to decades and I can lower my cost basis on them right now. I'm doing that and if they fall further then I lower it more.
I'd rather be the guy that lowered my cost basis into a recovery than the guy that sat on the sideline for the entire crash then had to watch the market explode in value on a recovery knowing I could have got great values and didn't because I was afraid of short term losses.
Every crash there's someone that sits it out due to fear. Eats them alive when they miss out on the action and then have to watch the recovery knowing they did nothing just to play it safe.
Many of the most successful investors wait for a correction before re-entering. Corrections follow the same patterns historically. Waiting until after the capitulation phase is the best time to re-enter.