Why does it cause you rage? It causes me jealousy!
When I used to do Theatre carpentry, I regularly used Festool equipment (that wasn't mine). It was an education in how careful thought to your product design can make something much better to use. I have an Evolution Sliding Chopsaw at home. It cost £200 and it's great. The Festool Kapex is just better in a lot of small ways - the mechanism for adjusting angle is quick and precise, the laser lines mark out kerf width accurately, the airflow has been designed so that dust extraction works well etc.. It's 10 times the price though, so obviously not worth it for me at home.
When I used to do Theatre carpentry, I regularly used Festool equipment (that wasn't mine). It was an education in how careful thought to your product design can make something much better to use. I have an Evolution Sliding Chopsaw at home. It cost £200 and it's great. The Festool Kapex is just better in a lot of small ways - the mechanism for adjusting angle is quick and precise, the laser lines mark out kerf width accurately, the airflow has been designed so that dust extraction works well etc.. It's 10 times the price though, so obviously not worth it for me at home.