If you buy the right equipment (im using a Netgear WPN824 router and Netgear WPN311 wireless PCI card) and dont have walls 6 foot thick then Wireless can be flawless for things like gaming (Xbox live included). Ive been using wireless for nearly 3 years now and have never had any problems with pings. My router is downstairs and my PC is across the other side of the house upstairs and protected via WPA. Pings:
C:\Documents and Settings\Nick>ping 192.168.1.1
Pinging 192.168.1.1 with 32 bytes of data:
Reply from 192.168.1.1: bytes=32 time=1ms TTL=64
Reply from 192.168.1.1: bytes=32 time=1ms TTL=64
Reply from 192.168.1.1: bytes=32 time=1ms TTL=64
Reply from 192.168.1.1: bytes=32 time=1ms TTL=64
Ping statistics for 192.168.1.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 1ms, Average = 1ms
And to ping a random game server:
C:\Documents and Settings\Nick>ping 85.236.100.241
Pinging 85.236.100.241 with 32 bytes of data:
Reply from 85.236.100.241: bytes=32 time=13ms TTL=119
Reply from 85.236.100.241: bytes=32 time=11ms TTL=119
Reply from 85.236.100.241: bytes=32 time=14ms TTL=119
Reply from 85.236.100.241: bytes=32 time=12ms TTL=119
Ping statistics for 85.236.100.241:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 11ms, Maximum = 14ms, Average = 13ms