I really don't think you'll have to worry about any of those things.For testing, setup, stability, speed, and security purposes, I rather have a Ethernet port on my laptop. Without one, your laptop is useless when the Wireless connection goes down due to power, software corruption, or hardware failure. With a Ethernet port, you can at least troubleshoot or even repair the problem. With regular laptops and PCs, it is faster to copy/paste large files across the network on the LAN than through Wireless.