It doesn't me. I've worked for Fortune 500 companies for many years. The environment does not foster loyalty or good will even when you excel at your work and productivity. You are always only one Six Sigma "re-alignment" of resources away from looking for a job.
Very true. I'm glad the OP's in a position to make a choice.
The other side of it is why's the company moving ? They may have very sound business reasons for doing so. I've been in the same situation twice, once because it saved the company money, the other when larger premises were needed. Can't really argue with either.