To sell my house?

[Chad W.]

I need a sanity check, or more what am I missing. 

In Raleigh NC. I bought the house in March, the house next door just closed for 130K more than what we paid. It is 4/2 and 40 sq ft larger no garage. Mine is 4/2.5/ garage. The house across the road is ~600 sq ft smaller a 2/2 no garage and is under contract for 40k more than what I paid.

I am seriously considering putting mine on the market. If I can make 80-100K I feel like I may be stupid not to.

What am I missing? What am I not taking into consideration? What are the tax implications since I have not owned it a year?