Why LAN expansion card ?

Is seems to me that the GHL Wifi has been unstable and buggy since the launch of P4

So until there is a fully and stable firmware for it, we, as users could use any wifi to lan box and have a secure and reliable connection to the P4.

Besides from this I feel more secure knowing that there is a physical line connecting my devices, plus there would be the benefit of a 1000mBit line,with better timing at a higher speed.

I for one, would definitely buy the expansion card if it was available.