In reply to Fredt:
I've got the Salewa Premium Attak set and I'm really happy with it. I certainly wouldn't want anything longer. The only reason to pay more (in my opinion) is to get one with a swivel (eg Edelrid Cable Comfort). The swivels prevent the lanyards getting tangled, but if you pay attention to what you're doing the lanyards don't get tangled anyway.
I don't see them as reusable or disposable. They are just a safety device. Like a safety net or like placing screamers while ice climbing, i have no intention or reason to fall on them. VF is not like rock climbing where falls are inevitable and even encouraged, with VF you have the lanyards clipped 'just in case'.
That said, on very steep VF it can be useful to have a short cows tail in addition to your VF lanyards. Then if you get pumped on an overhanging section (or just want to stop, enjoy the exposure or take a pic), you can clip your cow's tail and hang on it to rest!