It varies among stores. It's better to take it in and ask them how much they would give you.
99p
TBA The release is scheduled for December 31 2011 according to Gamestop and the date is changed to March 6 2012 on October 19 2011
There would be no effect. Only if the sun's mass were altered would there be an effect.
Depends on the game type you like. I would personally get Mass effect 2
If he died in Mass Effect 1 then he is not in Mass Effect 2. If he survived Mass Effect 1 he shows up in Mass Effect 2 but he can not be killed.
If you played Mass Effect 1 the second game imports your old game save, so it would depend on how you played Mass Effect 1 as to whether or not Kaiden is alive. If you did not play Mass Effect 1, then the game will default to the character with the opposite gender to Shepard. So Ashley will be there with a male Shepard, Kaiden for a female one. Below is a link which has the important decisions you make in 1 and their effect in the sequel.
The effect of mass extinction is extinction, death of a mass
Yes, there will be a Mass effect 3. even if your Shepard died, there will be a mass effect 3.
It would make the value of the item decrease.
mass effect 2 will be
BioWare, the developer of Mass Effect has confermed Mass Effect 2 to come out in 2010.
If you don't import a save game from Mass Effect, you will automatically choose the character of the opposite gender to survive. If you play Mass Effect first, though, you can choose if you want Ashley or Kaidan to survive. So to play Mass Effect 2 as a female and with Ashley alive, you would have to play Mass Effect and let Kaidan die on Virmire.