Most all my builds have wifi on board or a card. No one wants real LAN anymore. And I've (they've) never had a problem with it. If we talking "in case" then laptops without antennas would be horrendous. I suppose the "potential" for a barrier is there but then again Win8 has the "potential" to be great and accepted. @ LXT - IMOK, let's not go there.
Except my belief is backed by actual science, you're just being a pathetic troll who's butthurt over someone liking an OS you passionately hate.
- ASUS Transformer Prime vs. Infinity. Both share the same chassis except the Infinity has plastic "window" on about a centimeter long running the width in the back. Why? The antennas weren't getting a good signal with a completely metal chassis, which reviewers noted a massive improvement on the Infinity.
- Zune HD has a plastic covering on the bottom half for what appears to be no good reason. It's because the antennas for wi-fi reside there.
- The antennas of wireless adapters on laptops (wi-fi and bluetooth) reside in the display, because this is the least noisy area and in all-metal chassis laptops, the only place with a "hole".
- The antennas on the PlayStation 3 run outside the metal shielding around the actual motherboard, but still underneath the plastic housing of the case.
- The products we make at work mount on weapon systems. The chassis are made out of metal because well, they have to be durable. Except they have windows for anything that requires an antenna.
- There's also those mods to wireless routers that call for attaching the antennas with aluminum foil in a parabolic shape to get better reception. This implies the aluminum is reflecting the radio waves (hopefully into the antenna)
Anyway, I leave it up to OP want he wants to do, I'm just sharing my preference and why.
What I'm implying with what I'm suggesting is expansion slot wi-fi cards are a waste of money. I'm just suggesting they don't get as good as reception as a completely external receiver solution.