Don't like the .orgs - reg fee for those.
CheapSneakers and CheapCarpet have some potential developed. Can't say how much for certain. Maybe try an e-commerce template and buy a membership at salehoo ($69 lifetime membership) to develop. $xx - low $xxx undeveloped. A customer willing to spend 15k on new carpet might not buy it from a place called Cheap. That word has multiple meanings.
LinksGolf needs to be reversed for any major value. Low $xxx
this are good names, and pretty good websites.
The .org is bed in terms of value, but not necessarily in terms of traffic.
the keywords are great and here is one great example: www.CheapYellowPages.com
the two I dont like are:
CheapTrainers.org
LinksGolf.us