Price crash of antminers

[plasterer]

Hi peeps, I am sort of new to Bitcoin, but what i have noticed is the price crash on fleebay on s1/s3s.  A couple of months ago an s1 was about £100, now about fifty, But the s3 ,wow £170 ish, One went today for £83 , Has it hit the point of not making any money,  Is that a rhetorical question? I have a rough idea what it is costing to run the hardware,as in what you earn, What do you think peeps?