If the choice of touring machines is between a sabre and an ST, go with the ST. If the choice is between a sabre and a 1st gen GL, I'm staying with the Sabre.
Every bike has its good points and bad. Once you update a couple things the V4 is a very reliable bike. I do my own maintenance and I've never had a problem that ended a ride.
When the time comes to move on to a different style of bike, I'm getting a new/newer GL.
All that really matters is that you're happy with what you have. I'm still waiting on my FNL to give up his CB750. He's not ridden it in 4-5 years but he still has current tags and insurance on it so he still has hope to ride again. Unfortunately his Parkinson's is getting worse.