Is it worth buying a point to lower mortgage rate?

[Joseph Kirk]

I have a few investment properties, but i am soon to be closing on my primary home to live in. Is it worth buying down your mortgage rate? I believe I was told for $3100 my mortgage rate will go from 6.90% to 6.60%. I'd be breaking even on that $3100 in almost 6 years. I also hear they may be cutting rates soon (but been hearing this for a while now and nothing). Putting the $3100 down will not affect me financially, I just dont think it will be worth it.

Any thoughts and personal opinions are greatly appreciated!