if it aint broke.......then dont fix it!
In which case, as a relative noob, why spend hours learning something when there is no immediate need. If your DYI inclined, then deal with it when a repair is required. If not, pass it over to an expert and hand over some of your hard earned green.
Personally, I have yet to have any issues with my Cabrinha (touch wood), perhaps they really are a quality kite contrary to others opinions

And if / when the time comes and I do have an issue, i'll assess or seek advice on the complexity of the repair, then decide whether to give it a crack myself or have it fixed professionally. Wife, kids, work, studying a degree part-time, time is valuable, particularly free time to kite, I most likely would be taking the most time efficient option.