No offense taken,
I'm just a casual hobbyist who uses my gears to shoot casually e.g. my gf, my family and my colleagues despite the huge arsenal I have. To me, there's no such thing as you have to utilize what you have before you upgrade cause there isn't a Utilization-Meter to show you how far you have utilized your stuff in %.
From what I had notice, there's a small bunch of people having inferiority complex and butt-hurt syndrome. To them, you MUST NOT upgrade or go for better gears especially you are newbie. Isn't that nonsense? For instance, do you need to learn how to use a PC using MS Dos and only upgrade to Win 7 just because you are still noob? Do you need to drive a toy car before you buy a new car just because you are still new? Do you need to shoot using antique cameras before going to higher end DSLR bodies just because you are newbie? Do you need to be Michael Shoemaker to drive a Ferrarri in Singapore? It all boils down to what you can afford as long you are comfortable with it doesn't that make sense?
I enjoy photography and I enjoy learning at my own pace.