I have decided that, at this point, usability of my phone, including the form factor, materials, size, shape, internals (cpu/radio/etc) and battery life, are more important than my need to noodle with the OS.
If another company produces a phone with a form factor/internals/etc. to compete with this phone (or a future Motorola phone), I would happily switch to an unlocked bootloader.
Unfortunately, there just wasn't anything that compared with the DX - locked bootloader or not. HTC has decided they don't care enough about battery life, and the OG Snapdragon just wasn't cutting it. Samsung decided they didn't care enough about their phone radios, screwed up the GPS, and crippled the phone with their proprietary filesystem which caused no end of problems.
I fear that we are heading down the same road again, with Motorola jumping on board with NVIDIA and going all-in with dual core. I would really like an unlocked bootloader... but not at the cost of high quality cell/GPS radios, good battery life, high end internals and a nice form factor/materials. IMO, those are all more important.