I can't really think of a reasoned response, but will try. The Tenere is not without it's faults. I'd be lying if I said it didn't have some. BUT am I able to realise that no bike is perfect, and they can be addressed. My engine bars cracked, along with others. I was pursuing a warranty claim but managed to throw the bike down the road at ca. 50mph in the meantime. The bars still managed to save the engine, and I'll repair the crack myself now. The quality of SOME of the fasteners is a bit crappy, but that's not limited to Yamaha.
The quality of the (to me) important parts; frame, engine, tank, wheels appears to be doing ok. The bike IS built to a budget, hence why it's cheap. With that comes the realisation that parts will have suffered the accountants hand. If you are really bothered about those parts, they can be replaced; shock absorber and handlebars for example. Other consumable parts such a the chain are also an easy replacement. The bike will feel better for them, but it's not a necessity. I've held onto mine for over 11,000 miles now of almost everyday use. It replaced a Hayabusa that I held onto for 3 months/3000 miles. I'd say it's doing ok.