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Not too sure on those gaming chairs they seem kind of overpriced but i got this chair a few months ago and its really durable and comfortable and i game for hours on it. Not sure if its offered in germany.
I have this chair that I got for $130
Even with all its various adjustments and such, it's still nowhere close to being as good in any way as a DxRacer. Those chairs are a much better value then you think. Just because they're marketed as "gaming" chairs, and have a race car style to them doesn't automatically make them garbage.
Bit of an odd one out, but this chair has lasted me for 3+ years and has tons of adjustment options , and is not too expensive
Holy, no way, chairs are super important, especially if you are going to sit for multiple hours. In the long run, having a good chair will improve you long term health and should stop back pain. And with him bring 12, it's better to have a good foundation earlier so he doesn't much up his life.
Anyways, I am also looking for another chair and I've narrowed it down to two for 100-150 (96-143 Euro i believe).
and the other
If not, an AkRacing sounds good
i have this one an i like it
Studio desk chair ($163): http://www.amazon.com/gp/product/B008OTSHSQ?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s02
Keyboard / Flat (no armrest) chair ($36):
Highly recommend both. Very comfortable, sturdy, and easy to adjust. Setup for the 1st link was extremely quick and easy.