if you are gona develop them then worth, or either hold them for 2-4 yrs currently they will be only reg value for fresh registered domains, rarely you get some one to request you to buy fresh domains
AGBK is pretty good, particularly seeing what is left available in LLLL.coms. I do not care for "Q"s.
A 6, one hyphen, and a 4??? Fairly big money. 3character.com says $400 reseller price for the worst N-N.coms - that probably would be one with a 0 (zero is not very popular), so 6-4 would be more than that.