@bio-tech sorry to hear about your grandfather. Cancer is a complicated topic and you have contributed a great overview. Douglas Hanahan and Robert A. Weinberg wrote an amazing perspective in Cell in 2000 and I am happy to see that you have a figure from their original article. In 2011 they wrote a follow up review and I encourage you to read it if you haven't already. It is one of the most read reviews on cancer. As you mentioned, chemotherapy is the most common treatment of cancer. But there are targeted therapies and personalized medication based on the individual cancer. In the near future genome sequencing of tumours will be common and drugs aimed at targeting the underlying cause (eg. which oncogenes are active or which tumour suppressor inactivated) will be used more often than generalized chemotherapy.
RE: Cancer: better know it than fear it!!