I only see 4 with asterisk's; remove those 4 from your list and sell the rest. None of them are collectible but they are useable and maybe, just maybe, there is someone in your area who can put a serviced, reasonably priced machine to good use. I'm not saying you do not use or appreciate them, what I'm saying is sell off the chaff to recoup your money (possibly a bit more) to re-invest in machines of higher quality or better condition to improve your collection.