It's right. I guess it depends on the person. My mom even checks her carry on sized bag because she doesn't like to have to lug it around the airport.
I started flying with a large 21in bag and I'm down to a 14in rolling tote. For most trips, the full size carry on was half empty. I wouldn't have been able to jump on earlier flights or made alternative flights during IRROPS if I had checked luggage -or I'd have made it without my bag.
I have very few possessions (I could probably fit everything I own in three or four bags), so this light traveling suits my lifestyle and I don't feel restrained by it.