I prefer the "natural" look of leather too. I set my leather out in the sun and let nature do the color change. I like to use either olive or neatsfoot oil to protect the leather....nothing more. I experience alot of people who think in order to keep the leather lasting year after year, they need to apply some type of "sealer". I strongly disagree. IMHO, leather needs to BREATH. It is going to age with time and that is what gives some items characteristic. I can't remember the last time I applied dye.
I'm not "knocking" anyones way of operation, just explaining what I do.