Even if you can crossflash to other models,
1) you won't gain any LightScribe capabilities of the 222 or 422 b/c the 122 has no LightScribe hardware.
2) you may gain SmartErase feature from the 322 or 422.
If are just curious to see if it's capable to crossflash between different models as a "fun" activity, that's fine. But if you want to have the feature set of the particular drive, then getting that drive would've been a better option.