I think the new UDP would save us money

i think i'm in the minority who might stand to benefit from the new unlimited plan

current

• four lines with two UDP, two 200 mb that get maxed out on a FamilyTalk 2100 plan
• unlimited messaging
• $255/month

after switching to new UDP

• four lines with four UDP, unlimited text/talk
• $180/month

any flaws to this logic?