Skids and Everyone,
Since I joined various Festool groups, including The FOG, I have made it clear I do not presume to tell anyone what to do or buy. I only report my experience and the results of tests I perform.
Although I retired as a studio executive in 2007, I keep my law license current mostly because not every case I handled has finished the final appeals. As for how I find the time, I have a very talented crew of master cabinet makers. I serve on the shop floor as our principal CNC nested router and beam saw operator mostly because the other folks prefer working with wood more directly.
I made it clear my experience with the Kapex and other blades is in a successful commercial shop. The results I need are not necessarily the same as in a smaller commercial shop of for a hobbyist.
Trust me, if I found that another brand of blades worked as well or better, especially at lower cost, I not only would be using those, I would say so. However, I always consider total cost of ownership, which in the case of blades includes sharpening. If a blade costs 25% less to purchase, but needs to be sharpened twice as often and sharpening costs @15% of the purchase price, soon that would not be a bargain.
As we say, your mileage might vary.