Replying to Anon figment vs. oakley o-frame

i have a-frames currently with a black iridium lense and needed a goggle for night. i would get a lense but the lense is more $ than either the figment or the o-frame. in the case of me buying the figment, however, i would have to buy the goggles with the gold mirror lense, then sell the lens for $15, then buy a yellow lense for $20, evening out at around $50-$55. (the o-frame with the persimmon lense in $45)
i've tried both pairs on and both seem to fit very well. what im trying to find out is if there are any disadvantages, or other things i should know about that are associated with either of these goggles, such as fogging, durability, etc. 

thanks.