I have been impressed with the prices at walmart.com. They carry Augason Farm and Mountain House products and shipping is free if you spend $50.00. That is cheaper than driving to get it and it is dropped right at your front door. The Mountain House 72 hour kits are the best prices for those I have seen anywhere.
I haven’t looked at Mountain House 72 hour kits, but I do know not all survival buckets are created equally.
I mainly look for calories per serving (and what kind of extras are included). Viewed some buckets that looked like a fantastic deal, but the sad fact is, they had really skimpy portions/not enough calories especially in a high-stress situation where you will be burning more calories than you think.
Good luck!