When I first got back into knitting, I'd go crazy at sales and then decided that I didn't really like the yarn I bought, especially that I've "evolved" to liking the 'good stuff.'
Until you decide what you like to knit and what you like to knit with, buy what you need. There will always be yarn sales. Always.
"Trust the pattern!"
Time flies like an arrow, but fruit flies like a banana.
Hop aboard while we follow the cloud-covered van of knitting harmony, man!! Woooo!! --Hedgehog
IngridKH on Ravelry