Comment by streptomycin

The small % you get on each purchase is crumbs, but the cookie is the big sign up bonus you can get. For the past several years I've been making about $2k/year from that, which is so much more than the % bonus that I don't know why anyone would care about getting 3% back rather than 2%. Like if you are that worried about your money, take the free $2k first.