I've never tried them, but Sally's extensions are usually overpriced. I used to wear extensions reguarly back in the late 90's, I do have a suggestion. I see that you are in Nashville. If you've been there for a while, look in your yellow pages for a good wig shop, especially if it is in an urban/ethnic part of town. Call around and ask about extensions, ask if they have human hair and synthetic(synthetic are only really good for wearing long, multiple braids). From there, you can either glue them in yourself
)which lasts2-4 weeks) or have them sewn in. Again, call a salon near where you get them
(urban/ethnic area) if you go to a salon that has all white girls working there, and they advertise for 'ethnic hair services', you can expect to get charges 2-5 times the amount of money that a salon in the 'hood will charge. I have bought extensions at my local wig shop for 20 dollars that were 120 at Sally's. It takes a little legwork, but nice hair extensions are truly very affordable foe many, it just takes a little looking around and willingness to travel a bit.