Did you have the DBM-8 Electric Burr Grinder? That is what I have. My God, that thing is nearly as loud as a engine. I bought mine at costco about 8 months ago. I have been debating on throwing it in the trash and going back to a whirly blade spice grinder because it is so freaking loud.
And put the money towards a better grinder. I also purchased a Cuisinart "burr" grinder from costco DBM-8 for I think $29.99. It was loud, didn't grind well, and broke after several months of use. When I purchased it I wasn't expecting much accept a grinder better than a blade grinder that will last at least 2 yrs. Thank god for Costco's satisfaction guarantee. Because of their guarantee I purchase so much from them. I rarely return anything accept if it doesn't meet my minimu expectations.