I disagree. Don't let price be the only deciding factor when buying an ssd. I'd place research above all else, especially with some SSDs getting 31% negative feedback ratings on amazon, etc. Plus, your purchase will not be doing much 'bang' if it has just died an untimely death, and that doesn't do much for that buck, either.
After doing some light reading, I have found something that may shed light on the m4 product issue: it's a firmware issue (no data loss), they are currently testing a firmware update to fix it, and it should be out around the week of the 16th, as per the quote below:
Edited by svthomas - 1/5/12 at 3:09pm
We are aware of an issue that is currently affecting a small number of users whereby their m4 causes their system to require a restart. This issue occurs after approximately 5,000 hours of actual “on time” use. Following the initial reboot, the system then requires subsequent restarts after each additional hour of use. However, the data on the SSD is unaffected and will not be lost due to this condition.
Through our investigation, we have determined the root cause of the problem and will be releasing a firmware update that rectifies the situation. We are currently running through our validation and compatibility process. Once this process is complete, the firmware will be made available to our customers. Although we understand the desire of some people to start using unreleased firmware now, we want to ensure that our solution works across multiple chipsets, systems, and operating systems before publishing the release code. We are currently targeting the week of January 16th, 2012 to publicly release the new firmware update.
We understand the impact that this is having on some users right now and apologize for this inconvenience. We appreciate your continued support, feedback, and patience as we finalize code and resolve this issue.
Dude, Crucial Employee, US