Depends on how early you got them, they returned something like $14-15k for me the first month but that dropped off really quickly.  I also did a minor volt mod to mine to get up to 400khash each from the stock 360ish, that helped as well. If you got them a month or so later at the same price that I paid you didn't do well at all because you missed that first few weeks of crazy high profitability when the network was still almost all GPUs and these were just coming online.  Diff doubled during that first month, and LTC price went down by like 30% IIRC.  That was also right about when hashrate rental became a thing, and people were speculating on altcoins like crazy, most of which were forks of LTC.  I'd rent them out for 120-150% of LTC mining rate and did pretty well on that too, and would mine on a profit-switching pool when they weren't rented.  By month 3 I was selling them off for $80-100/ea.  I did ok by the time all was said and done.

During that timeframe I also upgraded to several GS blades, then got some 1st gen 30MH Zeuses, then some G-blacks.  The only way you made money during that time was by hustling with the hardware and continually upgrading and selling off your old stuff.  By the time I shut down my farm I was up to about 600MH of gear, that was a long time ago.  Most of it sold here, actually.  Then I moved on to Spondoolies/Bitmain gear.  Now I don't have anything at all cause the hardware prices don't make any sense with my electricity cost

Was a fun ride though.