I may sound like a noob, but this question has been bothering me for a while now. My question is primarily related to throughput. What's the point of routers with 100+ Mbps etc. on either band when the ISP gives typically much less? For instance, I just signed up for Centurylink here in Phoenix and will be getting 40 down/20 up advertised. How would a router that theoretically provides better throughout at all increase the speed of my connections? Any bottleneck would be coming from the ISP, right?