Should I get a Jr Pass?

Hello, just wondering if I will be saving any money getting the JRP with my current plans.

Day 1 to Day 3 :Travel within Osaka
Day 4 : Osaka to Kyoto
Day 5 : Travel within Kyoto
Day 6: Kyoto to Hakone
Day 7: Travel within Hakone
Day 8: Hakone to Kanagawa
Day 9: Kanagawa to Tokyo
Day 10-12 spent in Tokyo visiting Tsukiji Akihabara and Shibuya
Day 13: Back to Osaka for flight.

Is it worth it to get a JRP? If Its cheaper otherwise what should I look to be getting?

Thank you.
Jeremy