[m52go]

For some people, the V8 means much more...the sound, the torque, and perhaps most importantly, a stronger platform for tuning and power that a V6 simply cannot offer.

Perhaps people doing PhDs also have different motives and intentions for how to use them.

[abawany]

Also, for people into that sort of thing, a V8 has more value for a collector than a V6 just by virtue of rarity.