First of all, what is a lot? If I was making a widget or something and shipped out 100,000 units and half of them came back that would be a LOT!. If a thousand came back that would be one percent, A hundred is one tenth of a percent and so on. I have no idea as to how many units that Garrett has sold and are out in the field let alone how many have been returned to them with problems. So it is speculation to say it is a lot we simply do not know.
Concerning reading a lot about them on this forum, the Garrett forums are place to come if you want to read about Garrett detectors so it stands to reason that problems with a Garrett detector would be posted here rather than say a Whites or Tesoro forum. Once posted, some of the threads can linger for days or weeks as everyone makes their comments so you can be reading about the same detector or instance many times over time. Also there are people who simply do not like Garrett for whatever reason and will cross post the same instance as many forums as they can. This is not speculation, I have seen it many times.
It is unfortunate that anyone has to deal with a malfunctioning anything, a car, TV set, washing machine or metal detector but it happens. I have sent mine in twice, once for an actual problem and the other for the upgrades. The problem I had was not posted here because rather than talk about it for days or weeks, I contacted the people who could actually help me. Garrett has always dealt with any problems in a very professional manner which is main reason why I will continue to do business with them in the future.
Jerry