Agreed to xtmx, you still need to wait for a very long time to get good value for them but still who knows we might get better TLD launched soon so then .me .co and such domains may be useless. If not, .me and .co will do wonders after some years.
.me and .co will have its value for sure. If you can find abbrevations for those words and make website around it, you can enhance its value. Right now it values around $30 each.
I think rjv.me is worth keeping RJ with any name starts from V will be interested in this one. The other two are not valuable.
s1r.co is still available, LNL.co is worth nothing. rjv.me, low $$ unless you develop it into a meaningful website.