I started cutting back in 2008. The amount of money I spent on hair products was astounding and downright shameful. Now, I have my staples in place. I am using up the products I kept when I purged in 2008 (gave away a TON of products) so I'm straight.
Re: Wen - Cuz (MonaLisa), I am delighted you found and love Wen like I do. We are truly family!
I have not come across another product (an all-in-one) that works as well for me.
I use the Trader Joe's Nourish Spa too, but it's no replacement for Wen IMO. No way, no how.
Also, I've found that Wen costs no more than other products. The initial outlay is more, but it eventually pays for itself since you don't need to purchase so many other products just to cleanse, moisturize, detangle and leave-in. $ for $ it is no more costly than other mid-priced products.
I use the Nourish Spa to add to my henna mix and rinsing my henna and indigo treatments. It's excellent for this purpose. It leaves my hair soft and lightly scented after henna/indigo. For the price point (2.99), you can't beat it. I do keep a bottle or two handy always.