You have valid points...I have been to other boards with other bikes and there you hear about all their problems.
The Spyder has its share of glitches not unlike any other motorcycle or car. The vast majority of owners are happy with their Spyders and they're not on this forum...they just ride and enjoy.
Those of us who are here use this forum to better educate each other and share experiences riding and putting on new and neat modifications for safety, performance, etc...
If I had to do it all over again, I'd buy a Spyder without hesitation...I love my bike and I love how much fun it is to ride and how visible it is.
If you buy one, you'll love it. As I do with all my vehicles, I get extended warranties for peace of mind...I got the BEST warranty, although after 60 days of ownership. I advise getting the 5 year BEST warranty so you won't have a concern for 5 years...this also includes roadside pick-up should there be a problem. Get the warranty when you get your bike for it is much cheaper...
Some of the problems on the bikes you read about might even be self-inflicted...sometimes we go too far and change many things without really knowing what effect it will have...many here are smart and try new things...the results are usually great, but sometimes things may not work great, may loosen up, etc...I wouldn't worry about this too much and if you follow your maintenance schedule, as is the case with any vehicle, you should be fine...
Get a Spyder...you'll love it!