The V series IMO will never be as commonly seen as the R3x series due to a number of reasons that you have to look at. The main one being is why do people buy a R3x series skyline:
1. The fact it is a cheap turbo car that has plenty of potential with basic mods that aren't that expensive, the V series skyline isnt exactly cheap to modify as its not turbo'd from factory, therefore to keep it NA and make big power is extremely expensive. The obvious option is to supercharge or turbo it, one thing that will never exactly be cheap.
2. Typical young kid that wants a car that goes "Pshhhhh", lets face it, there is a crowd of people that know nothing about these cars but think they are awesome because they have a BOV. The V series (unless turboed) doesn't exactly draw this crowd.
3. History behind these cars and the iconic status they had in the 90's. Once again the V series doesn't have this.
4. Drifting/drag racing/circuit racing. Even though the V series can be made to be as quick or quicker than a R3x series, they just don't carry the characteristics of the older series to be able to chuck around in these avenues even in a basically stock form.
Don't get me wrong the V series skylines are nice and will become popular as prices come down. However they don't draw the same crowds of people to buy them as the R3x series does, therefore i doubt you will ever see a V series in every second persons garage as you do with the R3x series.