I've had my Bosch sander for years. Been a work horse. But today, it stuttered then quit. I use an orbital sander enough that it's needed, no question about that. But when a unit is close to 10-15 years old, what's your criteria for replacing or repairing. I've looked up the repair parts costs: There are three parts that fix a Bosch 3107 DVS that won't start close to 75% of the time (cord, brushes, on/off switch). That would cost only $36.00. Vice a new similar sander for $150.00 and up or $90.00 for a factory reconditioned. My thinking is: if I order the parts and they don't fix it, I'm out $36.00 and some time. But if they fix it, I've saved a boat load and maybe use the money I've saved to buy some gadget along the way. Good thinking, or are the new Bosch sanders that good, I shouldn't hesitate and go for new. Thoughts? What's your criteria?