This is at least the second time you've mentioned the Montbell alpine down jacket not being warm enough. Just because it's not what you need doesn't mean there is anything wrong with it. Heavier down jackets are available, even from Montbell. Some of us prefer lighter jackets because we aren't out in really cold temperatures, so they do work fine for many people. This really has nothing to do with old or new gear, just about matching the gear to the conditions.