Why should we change bbz10 to bbz30

Well, i was reading all the old stories on the crackberry form .. So far i just noticed bbz30 same as bbz10 only change the screen size...

Well, i don't think i will change bbz10 to bbz30 just for the screen ......i have no idea what's bb teams are thinking about the market ..

I will change if bb z30 bring some new ideas

1. Retina display
2. Scratch proof screen
3. High processor
4. Batter battery life
5. Camera should be updated to 13 or 15 mp
6.hdmi+ charger should me same in the port.

Well, i might be wrong but you guys can put some of your ideas ... Why should we change bbz10 to bbz30.

Cheers...