Answers to the OP could read like David Letterman's Top Ten:
10. It's income tax time and the government is giving away money!
9. It's income tax time and I owe the government a lot of money so I better hurry up and spend it!
8. I get paid for falling asleep at work anyway!
7. What goes around comes around!
6. My father had one just like that when I was a kid!
5. I regret selling mine years ago and I want another one just like it!
4. Holy cow! That gun is in good shape for having gone through the civil war!
3. It all averages out in the end!
2. I want a shooter, not a safe queen!
And the #1 answer is:
KARMA!