Easily, because I am looking at the total investment that has been made, not just the cost of the upgrade. Nor did I state anywhere money would magically return to my account, it's called ROI. I paid $599.99 for the Alpha Dogs about 4'ish months ago, I would then have to pay $420 additional for the upgrade which in turn makes the fairly new original Alpha Dogs more expensive than their counterpart, the Alpha Primes.
Considering the time frame to which the AD's were released then only a short while later having the AD Primes were released, was hoping for a little more incentive to upgrade by the manufacturer to the loyal customers who bought AD's and helped build his business, but if this is the option then this is the option. It is his business and his choice.
I don't agree with the practice, it's my opinion, doesn't mean you have to agree with it or even like it, by all means enjoy your upgrade. Won't say anything else about it, as it will just take the thread off track.