I want my magsafe charger, i want my displayport and ethernet port, i want my CD drive, i want to be able to replace the battery myself (done it twice), and to swap hard drives (done it four times) and RAM (once) easily, I want physical keys for escape and media buttons.
I have gone so far as to personally take out the motherboard and replace a single tanatalum capacitor with an aluminum-polymer capacitor (requiring me to scrape off some of the soldermask off so i could solder to the ground plane easier since the Al-Poly cap is much larger) because the tantalum one was causing GPU kernel panic crashes. (Big thanks to Louie Rossman for the tutorial video!)
I've brought this thing back from the brink of death many times and i will continue to do so until Apple cleans up their act and makes a true developers laptop again.