This one is a no brainer! If you plan to go to the Please Touch Museum in Philadelphia it is 15.00/person for anyone over 1 year old. So a family of four is 60.00. If you plan to go more than once, or want to take guests with you, it is better to buy a membership for the year. They start at 150.00 for a 4 person membership. This means 4 people gain entrance at any time, no matter who they are so long as they are with you. Totally worth it!! A 6 person membership is only 170.00/yr.