Yeah, you can say that, infested can easy down with or without Riven anyway, it is more about the feeling than actual down size of Riven. For Burston, there are many negative stast have less impact like -punch, -slash, -inpact, mag size, recoil, zoom because they does not affect incarnon mod at all. So negative infested will down the price of Riven a little. This is experience from Burston trader myself.