I mean, more of an Apple presence is a good thing - but mini-stores? I'm not even sure I'd call their regular retail store in the mall here in St. Louis, Missouri much more than a "mini store"! I think some of you folks in major cities that have a "mega Apple store" don't realize how limited some of Apple's other stores really are.
IMHO, one of Apple's problems has been the perception that they don't really have much to offer in the way of software and accessories. (Most people think "What can one of those places really show me? They make this big aluminum G5 thing, those lampshade looking iMacs, and a few different laptop products. Other than that, umm... they have a few programs like Keynote and Appleworks, and that rather expensive firewire camera of theirs... What else is there??")
What I think needs to be done is to make more of an effort to fill up their stores, chock-full of all the 3rd. party goodies. Carry everything companies like MacMice offer. Sell those customized computer desks made just for Macs. Carry a full line of rack mount and wall mount hardware. Stock all of the AGP and PCI video cards that newer Macs can use. Carry a couple SCSI cards. Heck, even carry a line of hardware and software just for folks trying to upgrade the "unsupported" PowerMacs to run OS X!