I have alot of thread, but i found that i use mostly neutral colors..white,creams,greys. i use a coupon and usually buy Guttermans at JoAnns, or wait for the thread sale..
i love using a verigated thread for quilting..
i did buy a big cone of thread from
http://www.connectingthreads.com/quilting+thread.html
to try out.
all the colors i have, i will never use..
i have "masterpiece",Aurifil,bottom line,and a few others..all of them work well in my machine..