Did you regret it because it wasn't helpful at all and fucked up your microwave? I agree with nightcrawler, anonymity trumps drive encryption. In the case of message encryption, in some cases it is required to maintain anonymity, such as if you are sending a shipping address to a vendor. If you are crossing customs then FDE could be just as important as using Tor, but most people do not randomly have their computers seized and searched by the feds, and for them it is way more important to not be located in the first place than it is to have their drive encrypted. If you are putting yourself in a situation where you know your computer is subject to arbitrary searches then of course using encryption is very important, but for every other scenario it is indeed a fallback strategy.