I guess for me it's a money issue, but I'm ALWAYS scheming about what to do to my freakin' ride, man! I'm never satisfied. I love how my bike rides, but I'm always wanting the BiggerBetterDeal.
Example 1: I've never really noticed all that much flex out of my std. QR Vanilla. Actually (other than my wheelset) I think the Vanilla was the best bike product I've ever purchased. For some reason I'm dadgum dead-set on getting a 20mm TA fork for lateral stiffness. It will add weight, cost more, and gain quite little in our rolling Kansas terrain.
Example 2: Not more than 2-3 days ago...I'd dropped my Vanilla down to 4". I really liked it. Today??? Yup...back to 130mm. Freakin' flip-flopper is all I am. I swear if I had any money at all, I would be buying crap every other week to tweak out.
I tend to focus on an area. Last year it was rear shocks. I finally got what I wanted and freakin' sold the 9lb frame so I could get a 4lb AM hardtail frame...go figure
Are you ever satisfied???