old UBNT gear, what do I do with it?

We are rapidly replacing all our customer CPE.s with MT kit. I now have a couple of thousand Nanostation 5 and Loco 5 units filling up our stores. Has anybody got any ideas what to do with them?

Sold as second-hand goods…
For example: ebay http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR0.TRC0.H0.Xnanostation5&_nkw=nanostation5&_sacat=0