The Guardians' protective flight suits weren't as sturdy as the Iron Man suit, but they were much more convenient and stealthy.
The main weakness was the energy source. Generally, a suit could only function for under 20 hours in one go, and even less than that if it was damaged.
In this regard, Tony's Iron Man Armor came out on top.
However, if the third generation arc reactor was incorporated into this suit, it should be able to use energy continuously for at least a month, which was perfect.
Something like this could be used on Earth. It was more convenient and powerful than nanosuits, and could be used as a reference for further development of the nanosuits.
In this way, Luke both had fun and talked shop with Rocket, killing two birds with one stone.
His only regret was that they hadn't run into any stupid aliens, so he and the Guardians didn't make any extra 'income' in the last week.
