I agree with idea of the barrels being a piece of equipment with a service life that may/will have to be replaced one day. The cost of wrapped barrels can be a prohibitive factor for widespread use if you have more than few rifles.
Since I purchased the barrels from ABS the prices have climbed a bit more than I want to spend in the future. I have purchased 3 Rockcreek barrels for other guns and will continue to buy and test barrels for other firearms as they require them. I do like Rockcreek barrels though. They break in slowly but their accuracy is phenomenal.
Recently my son and I purchased two McGowen barrels, a 22 center fire barrel with a 1 in 8 twist for a long range 22-250 and a 257 barrel for a 257 Roberts AI. The 22-250 barrel is shooting less than MOA with 55-75 grain bullets and there have not been that many rounds down the barrel, probably less than 40. That one was is doing great. I will zero the 257 Roberts later on in the month so we will start that process then. I will report on those two guns as we put more rounds through them.
My next project will be a barrel for my 220 Weatherby Rocket. I have Douglas XX , 1 in 8 twist on it now and it is still shooting good. It is a chrome - moly, barrel and when it needs replacement I will opt for stainless steel, but I am not sure which way to go, cut rifled, buttoned or hammer forged. In the USA we are lucky to have quite a selection to choose from. I do know however it will not be a wrapped barrel as the caliber is overbore and hard on throats, so it will get used up much faster than my 308 or even the 300 RUM.
The 308 is shot frequently and the 300 RUM is just not fired that often, so both barrels may last longer but for different reasons.
The 308 is easier on barrels than some other calibers, but I always try to let them all cool between shots no matter what caliber they are to stretch out their life. I also make it a habit to use a bore brush often at the range to remove any fouling.
Barrels cost is a factor in choosing a barrel obviously, but that aside I don't like having to re-barrel as it is a time consuming process which takes the rifle out of service for a while.