Multiple sku is the norm, with the cheaper one being the loss leader and the more expensive one being closer to breaking even. (The Wii U basic sold at cost to retailers, the Deluxe made a profit, however, R&D plus other expenses averaged out to a loss in the end, plus stating they sold at a loss deflected a lote of hate at their pricing)
If Sony puts out only one sku, that will be quite the change, but I would welcome it. Maybe make it a build your own...
No HDD included but one is required, any 2.5" 7200RPM drive will work with an official Sony branded 500GB for the less tech savvy shoppers. Everything else is optional. Not likely but it would be an interesting shift.
*think of my previous post as a prediction that is also a wish list, almost everything on there has been heavily rumored to happen except for the Ratchet title
PSN - Pendragoongp
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