I don't know enough about it. The material is about 2/3rd the weight of steel and strong. It has a positive and negative reputation for compliance, some say it absorbs road vibe, others find it sways or shimmies. If you are talking about a touring bike you just aren't going to get much overall reduction in weight due to the proportion that something like 1 pound might represent.
Right at the moment, with war based demand in the system Ti is doubling every time I price something. In the extreme you might find a serious builder using a straight gage piece if 4130 with a sleeve, on a custom steel bike; cost, 4 bucks. Seat tube in Ti straight stock, not butted 52.50, price a few months ago, in the 30s. Butted nova, about 15.
There is someone on the touring forum who has posted on a Ti Gordon touring bike they are very happy with.