This is a great deal. The card usually goes for $149, which is probably a bit overpriced as it's a Sony. Still, $49 must be a price mistake. I drove to Burbank, CA store today and picked one up.
A range of up to 150 feet (line-of-sight) does not suck. Read reviews on any Access Point from D-Link, Linksys, Netgear, SMC or else. None of these SOHO products can work reliably any more than 100ft, if not 50ft. I believe that Sony, being as reputable as the company is, is stating the realistic max range of 802.11B in their spec instead of listing an unrealistic range like 1,000ft or so, which some other companies might do.
The card is pretty nice and of good quality as what you expect from Sony. The driver CD even came in a plastic CD case instead of a paper sleeve, which is a nice touch.
Now I just picked up a Linksys Wireless Access Point/Router/Switch from Dell for $118 after rebate hoping that those two will work well together.