It's not any different from selling skins for any other game, whether it be Soul Caliber IV, LBP, etc.
Nobody has to buy anything as it's already been pointed out (and ignored by the detractors).
Developers will probably take the cue from Guerilla Games and include Home costumes/items with pre-orders for their games in the future.
I'm pre-ordering KZ2 through Amazon for this reason, just like a lot of people pre-ordered LBP based upon which retailer offered which DL bonus items.
And yes, a lot of people buying items on Home have the disposable income to spend it on whatever tickles them. If you can't grok that, again, nobody is forcing anyone to buy anything.
But sales on items are not likely to stay consistent since it's mainly new users who end up buying items. How that trend changes will depend on how often new items are made available as well as if they're interesting enough to warrant a purchase.
And of course, there are free items players can win which no one has mentioned. Although much like free swag that is handed out at trade shows (t-shirts, hats, etc.) they are more like product placement items. But still free. And some are actually pretty funny.







