Oh God what I geek I am, Goobye all..

[Moonliner]

Originally Posted by Ghoulish Delight

Oh, that's an easy one. You only get the ghost thing if you die in front of Luke. That's actully the ultimate goal of Jedi training, to die in front of Luke. Just look at Obi-wan. Happily trading blows with Vader until, "Oh good, Luke's here, I get to die in front of him and get the cool ghost body!" and he puts away his saber.

Obi-Won was in no shape to face Vader and he knew it. As soon as he felt Vaders presence he admitted defeat to himself. His goal was to get Luke off the Death Star. All he had to do was keep Vadar talking long enough to distract everyone and let Luke get on the ship. But dumbass farm boy decides to take on the entire imperial army in an attempt to save Ben. Ben then gives up the fight so that Luke will run away. After all if you give an entire room full of stormtroops enough time eventually even they will be able to hit something the size of a person.

In Sith, we learn that Obi-Won has spent the last 20 years or so studying how to be a ghost. That's why he is able to go from corporal to ghost on the spot and talk to Luke seconds later. All the rest of the Jedi at least left a body behind.