What should I do....

So I have come to a crossroads with my hair. This is about the time when I let my hair go back to blonde, but I have become so attached to the red (and I did permanent color this time around) that I don't know if I can do it. 

Here is a little back story on why you see my hair change twice a year... In college when I was bored with my hair I would dye it to switch things up. Eventually it was getting too crazy (by my standards anyways) and my hair was starting to show the damage; so I restricted it to seasons. I love having red hair so much that I reserved it for winter (also so it wouldn't fade as quickly in the summer sun) so that I would have something to look forward to in order to survive the disgusting months of cold weather. Plus red hair looks really nice with fall colors.

So now I am in this predicament of if I should continue to touch up my roots every 3 weeks (don't know why it is growing so fast lol) or if I should just let my natural color have its time in the sun (literally). 

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 What should I do everyone?