Yep. If you hike in the high Sierra, bear canisters change the entire UL equation. Right out of the box, you have an additional 2lbs for the can, plus a bulky object that practically requires a framed pack in order to keep the canister from jamming into your back.
The original poster asked about a good internal frame pack for around $100. The pack I use is the Atmos 35, which, because it's heavy (2lbs 14oz) with respect to its size, was discontinued by Osprey. But the weird thing is, it is absolutely the best small pack for 3-5 days in the Sierra where bear cans are required.
All my gear is UL except for this one item. I'm willing to accept the additional 1.5 lb pack weight vs GoLite, etal because the air-speed suspension allows me to jam my BV450 in there without it poking @ me all day long.
Because the pack has been discontinued, I've seen them being blown out for around $100.
Edit: Osprey or other pack mfg might consider a targeted pack for the high Sierra. The whole bear canister issue, especially now that Ursack remains on the disallowed list, is a huge deal. Ironically, Osprey discontinued the very bag that fits this niche market because it didn't due well against UL packs for other regions.