Depends Stevie on howmuch of a music anc and gadget freak no.3 son is.

If he eats breaths and sleeps music then I would go for the nano, although all his other equipment will deal with music the nano as far as I am aware would give far more musically than those as it is really only for music and it is mobile and can connect to sound systems etc. 

If he is more for eat breaths and sleeps more then the dressing gown may be a wonderful addition to his wardrobe.

Decisions decisions.