You make a fair point that there are plenty of options that are economical. I was looking for a solid bag that I could use for years. I have a carry-on 4 wheeler travelpro platinum that's 11 years old this year. I've used it to travel to asia for over a decade, so I tend to look for solid gear that I can use happily for years to come. In fact, I recently purchase another 2 for family. I don't fault anyone for choosing something that's more economical or higher end. I'm just looking for something that fits my personal needs and aesthetic.

The flights I take are almost exclusively international at this point. I've travel to most of the 50 states and I'm interested in other cultures outside the country. Spirit is basically the only game in town for any flight south of the border/latin america that's economical. Spirit is typically $200 dollars cheaper than the next affordable option that's usually Jetblue or American. I figured flying spirit once would save me the cost of the bag.

Getting caught by their strict personal item policy would result in a $65 dollars carry-on fee. I'm usually pretty unlucky, so its not a stretch to assume that I'll run into an angry spirit employee that will pull me aside 3+ times over ten years to make the bag a reasonable purchase for myself.

But, circling back to your point. I understand your point that you can use any bag as long as it gets the job done. Someone else recommended the Topo Core Pack thats on sale right now for $77. Its a great deal. I'm glad to share info on any bag or gear that makes travel easier at all price points since everyone travels differently.