Pet store acclimation

My lfs is suppose to have got a bubble tip yesterday for me to. They would have acclimated it to their tank and they have a sale today (buy something get something half off) and was wondering if it would be detrimental to its health to be acclimated twice in a short time..... I would love to save money.... but don't want to kill anything.... so if I would be better off waiting I would do it