Going forward I want to have $10,000 USD available at all times to take advantage of significant crashes...like we've been seeing over the past two days.
The question is which is more secure...
storing $10,000 USD on coinbase or buying $10,000 USD worth of USDT Tethers and moving them to a wallet? I've heard a lot of things about Tethers being made out of then air.
Coinbase is better for holding USD. They're licensed and compliance-minded, and USD is kept in FDIC-insured bank accounts. If they get hacked, the vast majority of their holdings are apparently in cold storage, so I think they would be unlikely to go under.
Tether is a different story. I would be careful holding USDT for long, if ever. The legal status of USDT is unprecedented, and they've been pretty opaque about their banking operations. In fact, I don't think they've been redeeming USDT for USD for a long time. I'd stick with a licensed exchange for holding fiat and having low buy orders set.