How adjustable is the ARGENT E700 chair for long gaming sessions? Does it have lumbar support? There's no mention of price. Is the ARGENT E700 within the typical high-end gaming chair range, or is it even more expensive due to the Porsche design? Besides the real leather, what materials are used for the frame and cushioning? Can I have this for my Meat Shop, is this possible I can use this chair instead of office chairs? While it looks sleek, is the ARGENT E700 designed purely for gamers, or would it also be comfortable for office work?