Ha evan you should explain why!!!
Well ill do it for you.
I dont necessarily think its crap, but in a way its a bit pricier. To go with AVCHD you will end up spending a little more on the camera for a similar product. Sure it is solid state memory and will hold a 4:2:2 color pull down (where tape cant possibly do that), so you will get better colors, but AVCHD will run at the same data rate as HDV (~23 mbps).
In addition, with AVCHD being solid state memory it also allows you to capture what is considered to be "true progressive" or progressive native frame rates; where as, the only thing a tape knows is 60i, no matter what. Any DV camera is using various pull downs to achieve whatever fps it can.
So AVCHD will actually produce a little better quality shot then HDV; however, it comes at a price that is a significant amount more than some good HDV camcorders.
I apologize if that didnt make sense, its late for me and i just wanted to help.
Hope that helps!
-Bentley