I am going to Spain for 6 months and have a boyfriend i keep in touch with in the US via twitter/email. The OAYG Sim with .85 for 30MB data seems a better deal than the pay monthly- am i right in thinking this? (Your data only plans are not 4 me)

I am going to Spain for 6 months and have a boyfriend i keep in touch with in the US via twitter/email. The PAYG Spanish Sim with .85 for 30MB data seems a better deal than the pay monthly- am i right in thinking this? (Your data only plans are just too expensive for me and i have wifi access for some of my day)