The reason latency is important is when the data packets are small where acknowledgement from the server is required and the difference between 10ms and 150ms would slow the overall data transmission to a crawl-- I measured the download from a VPN server on Hughes net that had a latency over 150ms that was no better than a 56K modem. That same server on my Verizon with a ping of 30ms was over 18mbs during a high traffic period. BTY gaming would be a problem as well with high latency.