blue boosts retail at 180€.
also about washing the white boosts: i've put my og ub in the washing mashine and my all white energy boosts. both came out just fine and (except for the bottom of the outsole) looking like new.
fun fact: mother in law threw the energy boosts in at 60 degrees celsius with a whole load of soap on top. guess what happened. nothing. no shrinkage, no damage, nothing.
i wouldn't be too worried about putting performance stuff into the washer, they are made for that kind of stress. (except for the ultra boost collective versions...)