Because when you have 8 devices, all 8 devices are sharing that 100MB connection. And you really have like 25 devices on the 2.4Ghz spectrum, because your neig

Because when you have 8 devices, all 8 devices are sharing that 100MB connection. And you really have like 25 devices on the 2.4Ghz spectrum, because your neighbors exist and everyone maxes out their WiFi router transmission power in a feeble attempt to yell/take over the frequency for themselves. -------- If you have 8x 100Mbit wires in your house, that's closer to 1600Mbit true bandwidth (100Mbit per direction across 8 devices).