I always take a bear can. Why? Because, at the end of a long day, I don't want to d!ck around trying to hang a food bag - especially above tree line.
Once you get used to the convenience of not having to deal with guarding your pack during rest stops, naps, fishing breaks, etc (marmots & rodents are sometimes worse than bears) ie just take out the can and put it aside, or even better, not needing to wake up to protect your stash during the night, the 2 lbs or so (I use a BV450) becomes practically inconsequential.
The trick is to find a pack that handles the can. Properly sized & configured, you shouldn't even know it's in your pack.