Rotomolded coolers like Yeti are nice and do keep ice well IF you pre chill and KEEP THE LID CLOSED

IMO, they are heavy and expensive and not worth the extra $$ unless the contents are of premium parishable value and ice is hard to comeby.
If a preson takes the time to follow the same pre chill instructions with a decent multi day consumer cooler I find very postive results for average lake use. (Powell or other remote lakes may be an exception)
The biggest problem is, these coolers are opened 50+ times a day, negating much of the extreme insulating properties. Place a damp towel over a common cooler (it has both insulating and security benfits) and ice lasts plenty long.
I can usually go from Friday through Sunday with a much less insulated Igloo Cube as long as temps stay below 95.

Cooler test link - http://youtu.be/6-TE4RnqT0U

---- pre-chill drinks; our drink refig is kept right at freezing
---- Solid ice not store bought cylinders. Freeze milk jugs then smash on ground or crowbar and cut with a box knife. Cheap, easy, fast and COLD
---- cover cooler with towel
big weekends we use separate coolers for food and drink so the food temp stays consistent.

The Yetis and Brutes are great, and there are others. For a day trip, some of the soft sided ones are OK, although I hate putting food in them. They also leak out through the zippers if the tip, which sucks big time. I have an Igloo Maxcold 72 quart, which wasn't even that expensive. It beat a certain soft sided cooler by 3 days when we went boat camping. That's the only big one I have left now.

Igloo white marine holes ice the best. Ask me how i know. Artie

They doo well Artie. Like most, if it can hold a block of ice it's very good. Some can even hold dry ice, but that's an extreme, and expensive propositions. I threw out or gave away my soft-sided coolers, pure junk. Pretty messy if they tip over as well.

The big Igloo marine coolers are extremely good for the money. If I boated daily in Florida or other hot weather areas, I'd spend the extra bucks for something better. I usually went out with 2 blocks of ice plus a few bags for a weekend. Amazing how many of today's coolers fail even that test. The old Steel Coleman was unreal.

Have 4 yetis love them. Have a Roadie,25,50,75. Use them on the cc and trawler. For the powerboat American outdoors coolers. Easy to mover around wont mess up the sun pad or deck, seat etc.

www.aocoolers.com

I have at least 6 of them that I can think of, probably more like 8. I've had other soft coolers and nothing compares. These are the only kind of coolers that belong on a performance boat.

From their website:
"Because of our confidence in this product we guarantee the coolers for life"

Great points, probably more important than the choice of cooler itself. We've been very happy with a pair of Igloo MaxCold coolers. Reasonably priced as well.

My vote is for aocoolers. Love mine! Was able to have the sunsation logo added and the boat name. Cost was minimal compared to the overall quality of the product! This is the 48 pack cooler. Be careful, 48 beverages plus ice gets heavy quick!

I have one that has lived in the back of my work truck going on 4 years. It is tough as nails, and they have their place. They don't keep ice as good as some cheaper brands.

One more for fr AO Coolers. Great product and customer service!