So is the main point of these new E2 instances to provide VM's for users who do NOT benefit from sustained use discounts? Does "general purpose VMs" basically

So is the main point of these new E2 instances to provide VM's for users who do NOT benefit from sustained use discounts? Does "general purpose VMs" basically mean "VMs that do not benefit from sustained use discounts?" I'm confused because the article itself says "For all but the most demanding workloads, we expect E2 to deliver similar performance to N1, at a significantly lower cost." So the article is claiming that the whole point is to save money if you do not need big memory or CPU (what I want!). However, what you write above and the prices seem to say that the whole point is save money if you do not benefit from sustained use discounts, which is a totally different thing. Help! I spend nearly $10K/month on Google Compute Engine and get substantial committed use discounts, so these are very important questions for me.