Currently Reynolds is very expenisive when putting new orders due to (UK) Currency exchange, probably Columbus as well unless there is already a large stock of it sitting somewhere in Asia.

My guess True Temper and Tange are priced better, I would go with True Temper as they have more up to date tubing specs. Prestige is nice but it's been around for ages, I think I made my first frame out of it in 1987 and don't think it's really changed since. Prestige & Columbus were the first to offer ovalized tubsets. I would like to think there are better & more modern tubing since then for the same price.

Yes; the Zona is lighter, an 8 piece tubset for a 54cm road bike is 1300gr, Life is a touch lighter but very strong $$, both prefer tig welding but then again who's fillet brazing track frames these days and that's where the prestige shined, also with lugs.

True temper has OX Platinum & S3 which are very good tubes, can't go wrong with them if designed & spec'd out properly. The Tubes mentioned above have great chacteristics for comfort, weight & strength. Way better than all the other tubes you see being used currently on sub $1000 SS frames. These tubes are are very thin and need tight manufacturing tolerances which raises the cost.

Hope this helps