No, you cannot bank Virtual Currency (VC) in the PSP version of NBA 2K11. Unlike its console counterparts, the handheld release uses a completely different progression system based solely on Skill Points (SP).
| Feature | PSP / Wii | PS3 / 360 / PC |
|---|---|---|
| Currency | Skill Points (SP) only | Virtual Currency (VC) |
| Microtransactions | None | VC purchasable with real money |
| Accessories Store | Absent | Available (shoes, sleeves, etc.) |
| MyTeam Mode | Absent | Full card-collecting mode |
Strategy: Simply play games, earn SP, and upgrade attributes whenever you have enough points. There's no "banking" mechanic needed—your points persist indefinitely until spent.