Game Boy Advance Price in 2002: $99.99

The original Game Boy launched in 1989. By 2002, its successor—the Game Boy Advance (GBA)—was the current handheld.

• GBA Launch (June 2001): $99.99 USD.
• 2002 Price: Still $99.99 (no drop until 2003 → $79.99).
• Game Boy Color (1998): Was $69.99 in 2002, being phased out.

If you meant the original Game Boy in 2002: it was discontinued, sold used for ~$30–$40.