You buy a top of the line Android phone from Verizon, the following week a better one comes out, from Verizon. Do you swear to never buy another phone from Verizon? You buy a new car in March 2012, new models come out in fall, so you swear to never buy a new came from them again?
The iPad you bought was the best when you bought it. But there was no promise that a newer model would not be released. People have to be adult enough to understand that any tech is dated if it has been on the market a few months. This market is highly competitive (people should understand this too) and it makes sense for Apple to refresh its premium tablet in face of all of the other competition. After they changed the connector tech, it makes sense for them to move new buyers to that rather than selling them obsolete connectors on their flagship product.
Really, if you don't want to ever feel shafted in the technology game, don't buy any of it. There is always new and improved. That is the way of things.