The Arcade SKU comes with wireless controllers and an HDMI port (although no cable). It was the Core SKU that did not have HDMI (neither did the original Pro SKUs) and wired controllers.
Edit - You can also use a wireless router as an access point and plug the X360 into it. A bit convoluted but its cheaper than the Wifi adapter. This drops your entry price of the 360. However, it should come down to how much you value each systems current and future game libraries and if that is enough to justify the extra cost of the PS3.







