Buy it if it fits.
I thought I was going crazy (and broke) last year when I bought my Bianchi road bike less than 2 months after buying my Trek FX. It was indulgent and crazy and expensive, but it was also the best money I've ever spent. The Bianchi and I already have thousands of miles on the road together and hopefully many more.
Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.
--Mary Anne Radmacher