I am not aware that more and more Micro 4/3 shooters have thrown in the towel and conceded the inevitability of Micro 4/3's demise. However, if this appears to be the case, this is because many of us have become weary of the whole subject. In the meantime, we have continued to enjoy shooting with our Micro 4/3 gear and even continued to purchase new equipment. I believe much of the push for full frame is motivated by economics. You correctly noted the lower cost of Micro 4/3 compared to full frame. It is no secret that camera manufacturers have been hurting due to the trend toward smart phones for the mass market. Higher prices for full frame gear mean higher profits. Micro 4/3 is the oldest and best supported mirrorless format out there. Given the enthusiasm of Micro 4/3 shooters for their format, I am confident that we can continue to carve out a niche market within a niche market even if we have not been as vocal in the debate.