When it comes to these pills I have one super-simplified comparison. Think of one of those dungeon and dragons like 30-sided die. Imagine that die is weed and all of it's psychoactives (i.e. everything in it that gets you "high"). Smoking cannabis is like rolling that die with the possibility of it landing on any one of the 30 different sides it has. When you pop a pill like Marinol or Cesamet, you're reduced to a one- or two-sided die. There's not nearly as many possibilities for the high, but you will get the same thing each and every time.
Personally, I kind of enjoy the feeling of these pills.... but only kind of. I feel like those crafty scientists did a damn good job of isolating whatever's responsible for medicinal effects and keeping it away from whatever causes recreational ones. It is a high, I guess.... it just seems really dull to me.
(Oh, and I didn't even read the first couple of posts. I'm a bottle and a half of wine down and saw a thread title that I felt like responding to, so I do hope I kept on topic....)