If you bought Modern Warfare 2+Map Packs with your own money and think it was worth it, you might be a complete loving tool of Activision.
15 dollars is nothing.
I don't see why you all are complaining.
The Stimulus Pack and The Passing came out around the same time, right? Let's compare them.
Stimulus Pack: $15, 5 maps with two of them from the first game, so you're only getting 3 new maps.
The Passing: Free on PC, 3 new maps and 2 new weapons.
Yep, the Stimulus Pack was so loving worth it.