Yes, wool is durable and with proper care it will outlast most any other material in the same application. I commuted for 20 years using the same three wool t-shirts and one heavy sweater. The sweater still survives, but I don't use it much anymore, typically only when XC skiing. The t-shirts are done and long gone in the trash. Wore a hole through the back of the long sleeve caused by a messenger bag, and the bag was not even exposed to the wool as the long sleeve was always under a wind breaker.

Anyway, I can go on and on about wool, suffice it to say that in retirement I am not doing a single months long tour and calling it good, I plan on taking a tour every year for at least 5 years and hopefully more, which is why I am looking for new. As it is I simply will adjust and persevere.