Just to clarify, my trip is a total of 7.5 weeks so two 30 day plans is likely to be best. While I expect to primarily use wifi, we will be driving while in Spain for 2 weeks and for the last 2.5 weeks that we are in France so there could be times when we need data on the road but I'm more concerned about needing to make a call in case of an emergency while driving. Verizon has a pay as you go plan as well as their $10 a day plan (only pay when used) but unless one is very disciplined on use (we typically have been even in the good old days when the monthly international plans were much less expensive), those could add up in a hurry!
Decisions, decisions! Thanks for the information.