Pumping and work travel - Yeti Cooler?

Hi all!

I go back to work in 2 weeks, and for my job I travel a couple of times a month for approx. 2-4 days at a time. I’ve been doing tons of research on the best way to pump but hopefully be able to save some of what I pump to bring back to my baby. In looking up ways to keep things frozen while traveling, I’ve come across the Yeti brand of coolers. They have a portable cooler that seem like it might be perfect to actually keep milk frozen during the trip (using hotel ice machine ice, and then ice packs when packaging it up for the plane ride). Only catch? These things are EXPENSIVE. Like we’re talking 200$+. I’m wondering if there’s anyone out there that’s tried this method for storing and keeping breastmilk during trips?

Appreciate the input!