The stick on strips were recommended by Bonnie Hunter not too awfully long ago. At that time, I meant to look into them and lost the link - so a huge thank you!
As far as having to replace the machine when the LED light goes - I've had the LED bulb on my Bernina replaced. I caught it by mistake and tugged it just enough to break it. It wasn't cheap to replace, and had to be done by my service person, but was quickly replaced.