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
My thoughts are that if the cables won't reach the speaker posts, they are indeed too short.
thanks for the comments so far. I guess I knew better than to expect a consensus here, but I was looking for a substantial minority.

I personally subscribe to Michaelwolff's school of thought. With my current configuration, 6ft simply leaves more slack than I like, and 4 ft is a little to taught on the mid/tweet connection - so 5 ft seems right to me. I generally run my amps positioned right next to my speakers, so this length is just right for me. I'm just wondering if I'm alone.

thanks again . . .
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.