Well, for ME, there is a lot of setup work I do whenever I want to start using an existing drum kit, or create a brand new one, for use in a Sonar project. The work that goes into a given track template has to be done anyway - and the actual export to create a new track template from all of the work is insignificant - while the PAYOFF for having track templates or project templates for REUSE is huge.
Since every single included drum kit, from any of them - Battery, Addictive Drums, Session Drummer, etc - ALL default to all the kit pieces getting internally routed to the main left and right outputs of the drum synth, I HAVE to reconfigure each and every drum kit cell to change routing assignments to instead route each kit piece to use its own audio output channels.
Once that is done, I have to add all the audio tracks into the Sonar project, and get levels set, and each audio track named for the appropriate kit piece, and pointed at the correct audio output channels from the drum synth, and then route audio from each audio track to an appropriate drum bus (toms, cymbals, kick, snare, etc.) and set it up for parallel compression, and all of that.
Since anytime I wanted to reuse a given kit, I would have to go through all of the above, I simply create a Track Template with all of the tracks, the track folder to hold the tracks, and all of the buses and routing assignments, and all of that - and then over time I have built up quite a collection of such track templates - one for each kit, and then it makes it SUPER fast and SUPER easy to pull all of that configuration data into a new Sonar project - literally with a handful of mouse clicks.
Track templates for ME, are one of the most powerful time savers in Sonar, and I TREASURE the creation and use/reuse of them for all kinds of situations.
While I DO have several Project Templates set up, most of the time, it is the TRACK templates that I can quickly add, that make things so fast in setting up projects - I will pull in a track template for the drum kit, another for a set of tracks for backing vocals, another for lead vocals, another for different flavors of commonly used instruments, etc.....
I hope the above makes sense - templates (both track and project) are HUGE powerful tools in the Sonar arsenal of functionality.
Bob Bone