If you do buy something i recommend going only for rare items as they are less likely to drop during a mission. (theswitcheffect.net)
If you've got a whole bunch of rare items that you don't want, here's a chance for you to turn those items into something far more desirable. (massivelyop.com)
Because of that, we've listed some smaller / less rare items in the hopes that everyone will be able to find something that fits their interest and budget. (blogs.sega.com)