BlackBerry-maker Research In Motion (RIM) is offering daily deals at its ShopBlackBerry.com online store throughout the 2010 holiday season, on products including BlackBerry batteries, chargers, cases and leather holsters. But smart smartphone shoppers should steer clear of RIM's official Web store, since just about every BlackBerry accessory listed for sale can be found elsewhere online for a fraction of RIM's costs.\n\n\nI first noticed RIM's "Holiday Specials" page on ShopBlackBerry.com after the company's official Twitter account "tweeted" the news, which includes deals on certain BlackBerry accessories each day through December 17, 2010.\n\n\nI've long wondered why any BlackBerry user with even an average degree of intelligence would shop at ShopBlackBerry.com, since a little online research shows almost all of the ShopBlackBerry products to be grossly overpriced. But these new holiday "deals" on the site finally led me to post on the subject.\n\n\nI'll keep this short and sweet, since I've already offered my advice for shoppers seeking BlackBerry accessories\u2014stay away from ShopBlackBerry--but here's a quick comparison of RIM's latest "deal" on BlackBerry leather holsters and Amazon.com's everyday prices for a few of those same holsters\n\n\nShopBlackBerry SALE price for BlackBerry Storm leather pocket: $25.49 plus shipping; Amazon.com EVERYDAY price for same leather pocket: $18.28 plus shipping.\n\n\nShopBlackBerry SALE price for BlackBerry Bold 9000 Koskin pocket: $16.99 plus shipping; Amazon.com EVERYDAY price for same koskin pocket: $6.49 plus shipping.\n\n\nAnd last week, RIM listed a handful of BlackBerry batteries and chargers for sale on ShopBlackBerry, but I found every one of those power packs\u2014official RIM batteries, not knockoffs\u2014for sale online at 50 percent of the price of RIM's store. \n\n\nThe one thing ShopBlackBerry.com has going for it: You're guaranteed "official" BlackBerry accessories, built and\/or certified by RIM for use with your specific BlackBerry. But again, you can find the exact same products for much cheaper with a little online ingenuity.\n\n\n\nAnd for more smartphone related holiday-shopping resources, read "11 Great Smartphone for $50 or Less" and "Smartphone Stocking Stuffers."\n\n\nAS\n\n\n\n\n\n Al Sacco covers Mobile and Wireless for CIO.com. Follow Al on Twitter @ASacco. Follow everything from CIO.com on Twitter @CIOonline. Email Al at ASacco@CIO.com.