It's because you're a toy. You are his toy.
6 seconds sound clip from the Iron Man (2008) movie soundboard.
You can hear this line at 00:58:29 in the Blu-ray version of the movie.
Quote context
[...]
- You were right all along. I'm not a Space Ranger.
- I'm just a toy, a stupid, little, insignificant toy.
- Look, over in that house is a kid who thinks you are the greatest.
- And it's not because you're a Space Ranger, pal.
- It's because you're a toy. You are his toy.
- Why would Andy want you? Look at you! You're a Buzz Lightyear.
- Any other toy would give up his moving parts just to be you.
- You've got wings. You glow in the dark. You talk!
- Your helmet does that, that, that whoosh thing.
[...]