Lets look at the hard numbers on this. From a pure usage standpoint. Also consider this is the only VSE week owned. I will compare annual to annual.
WKV 1BR Premium (These numbers are from the MF Database for 2014)
$827.60+140.00=$967.60
81,000/$967.60*1000=$11.95 per 1000 SOs
SVV 2BR (The MF Database numbers for Bella don't look quite right (missing taxes), so this is a close estimate)
$1161.62+$140.00=$1301.62
81,000/$1301.62*1000=$16.07 per 1000 SOs.
The annual savings on MFs between the two is $335. I don't know the exact difference in capital outlay, but it is also safe to say that with SVV, there really isn't any so there is no concern if you can only sell it for $1 down the road because you would have lost at most perhaps a $1000. With WKV, while the past is perhaps the only predictor, you are putting a lot more capital at risk that you may not be able to get back. If the difference in capital is $6000, you have an almost 20 year wait to get the return on your capital outlay.
I guess a lot depends on how long you think you may own the week. If you are buying for the long haul, WKV makes more sense. Own for only a few years or just want to get your feet wet, you may want to consider SVV. You can always sell it later for about the same price you paid, even if you have to give it away.