The price for the bullets is quite cheap considering what you get especially if you buy by the case. Not sure if you want 3,750 bullets but the box weighs almost 60 pounds and is shipped free of course! 
I didn't know that about the JHP's being more accurate. I only knew that I was tired of paying the high price for jacketed bullets from Hornady and Sierra and I don't particularly like lead that much. Though I would not be adverse to lead but I have had problems with leading in my barrel already. And I only loaded them to 800-900 fps. I always prefer JHP to FMJ for target shooting only because it punches a nicer cleaner hole. I could not be happier with the results I am getting.
I usually buy premium self defense ammo for my house gun. I had no intention of using the MG JHP's for any type of self defense ammo. Mostly because I couldn't find any data on expansion and such. So thank you for clearing that up. But I am thinking of starting to load my own self defense ammo using the new Hornady self defense bullets or some other equivalent.
3,750 is quite a bit, but I figure that I will eventually use it up & I have a feeling that we will see shortages (and price increases) once "The Annointed One" is re-elected. Please don't misunderstant that to mean that I want BHO to win, but I believe that it is inevitable considering his support base.

I was hoping that the MG & PD JHP could be used for HD situations, but as you mentioned - there is no data supporting it as such. Also, the websites make no mention of expansion or usage for defensive purposes.
I found this video on YouTube
and also info on BrianEnos.com - it is a goldmine for reloaders & competition shooters (just don't ask about HD situations as that is not what the forums are geared towards).
I've pretty much standardized on Hornady for HD ammo & am still waiting for their Critical Defense/Duty bullets to become available. Using XTP & Flextip for 38 spl & 357. But, I am using Remington Golden Saber for 9mm. Costs are way less than factory loaded ammo although many experts state to use only factory loaded ammo for defensive purposes.