I moved from 1Password to LastPass for a few reasons not related to UX:

1. Platform support: 1Password only supports Windows and OS X. I use more than those, and want to maintain the ability to jump between platforms at will. 2. Pay twice for OS X and Windows. Seems extortionate. 3. Browser support: I want to be able to try out browsers. At the time I made this decision, 1Password actually reduced the number of browsers they support.