I think the "advantage" to the Home Brewer package is they send you the collection container and the packing material/prepaid shipping back to them. As others pointed out, it can be done cheaper using one of their other available tests if you use you use your own container and ship it to them...
Packaged: Heady Topper Clone (killed during AB's craft bashing SB commercial...), Graff, Basic Spiced Cider
Recent Meads: Mead Day '11 Ginger Metheglin, Mead Day '12 Traditional (orange blossom) Mead, Simple Cyser '12
Primary: Wild Cider, Simple Cyser
Secondary: Why do I keep this line here...?
Bulk Aging: Cocobochet
Planned: Hop Metheglin #3 (NZ hops), Trad. Gesho T'ej