[quote name='gamewizardx']When was it $29.99? I ordered Sat and watched it until Monday and it went from 35.99 to 35.09. 360 was never $39.99, you might have been on the PC one by mistake.[/QUOTE]
The PC version was $29.99 all weekend. It got raised to $39.99 Sunday night. It was $34.99 for a while last week. The Xbox started at $59.99, last Tuesday at launch, and when they dropped the PC version to $29.99, they dropped the Xbox to $49.99. I was so tempted to get the PC version, for that price, but I like playing on the big screen, so I got the Xbox version. I was surprised that both PC/Xbox still had teh $15 credit. All the reviews on Amazon are for the PC version, and people either hate it (the die hard SC fans), or actually like it. I think that the people who hate it are the people who wanted teh same game with better graphics. On the Xbox forums, there is a universal like for the game, and many are deeming it the best RTS on the Xbox. Smooth, great frame rates, large population cap. Minimal glitches.
I have not played the game yet, but there are 18 missions, with different difficulties and achievements for getting all the bonus objectives, etc. I doubt that you can finish the game in 5-6 hours (my guess would be 15-18 hours, minimum). Then there are achievements for skirmish matches against different AI's/ maps, etc, that could take many, many hours.