I found someone wanting to sell his iPad 128gb wifi+4g for $800.00. The thing is he told me I have to choose which company I want to put the plan under since there is no apple sim in it. Does this mean I will have to do a monthly plan on it? Or will I still be able to do the month to month where I can turn it on one month and than not have cellular data on it for a few months? Never owned any cellular iPad devices before so no idea how this works.