It's no different than buying cars, Dave.
. The features you want most are always on the next model up, but then again the next model up also includes accessories that you can easily live without. Just like cars, the accessories aftermarket are the most expensive.
. Why? Because they can
. Third party companies are monopolizing consumers where alternatives are not available.
That's why I tell hobbyist and beginner photographers to really sit down and ask yourself "Is it really really necessary" to have certain gear (or accessories) for your type of photography. Some items one will definitely need while others one can easily live without and/or find a way to compensate. Imagination is the most powerful and priceless tool in your photographic arsenal
.