It could be an incentive to join the Platinum Club.  Join the monthly membership ($30) and get V4 free, a $5 voucher, and access to all the $1.99 club prices and another 30% off the introductory prices of other V4 products. Paying $70 for the annual gets V4 free, 30% off V4 products, a $30 30-day voucher, a $5 monthly voucher, and access to all club items. 

Anybody willing to pay for V4, hir-res maps, and morphs can get all of them free with the annual membership (and free vouchers) and still have some voucher money left over for something else. If somebody is willing to spend $60 for those three items, joining the PC is only a little more expensive and will essentially pay for itself.