>>1042862I disagree. There's been a bunch of improvements in backpack design and fabrics used in apparel.
Moisture wicking fabrics make a big difference when it's hot, humid and you are being active.
Modern internal frame packs hold weight more comfortably, and give you more stability, especially when you are hiking through brush that would get caught on a big external frame. Not to mention the improvements in weight and airflow to a sweaty back.
You can get most of these things for comparable prices, maybe a small premium. If you think about how long the gear last, the cost difference is negligible. Maybe $50 extra to get a good pack that lasts 5+ years over the 25 year old pack that weighs 4x as much and will never feel comfortable loaded up. The only times you see big cost differences is when you are trying to buy the state-of-the-art gear.
Do you need the modern stuff? No, but I think it's worth the extra money for a bunch of items.
Titanium spork? No.
Modern backpack design? Yes.