is there a consensus on too short speaker cables?


I normally use 6 ft cables - which are in abundance used. 8 ft seems to be more common. I'm going to get new cables and intend to go with 5 foot length - since this is as long as I need. My only reservation is given the fact that selling them is inevitable next time I upgrade - would 5 ft be less saleable than 6 ft? Is this nit-picking?
bdgregory
Let's put the question in a different context, would you want your sister to date someone who only had 5'? Your ex-wife deserves something like that, but not your sister let alone your prized loudspeakers! 6' minimum unless you want your speakers to be singing that Rolling Stones song.
Same with 5 or 6.....or 7 feet tall speakers.
I like mine tall, brunette with nice bottom end and extended front stage.
An old friend, who is an MIT insider, once told me that Bruce Brissen says speaker cables needs to be at least 8 ft to propigate a solid bass wave.

Cables are too short restrict the ability to play with speaker room placement
So, what about active speakers? does that mean since the amps are hard wired, they won't get good bass? I've also seen active speakers w/ the amps externally... tho the cables are far from 8 feet. I dunno... doesn't sound right to me.