Should I pay $350 above cost to have a 42 SS MIL now vs. July?

[UltimateSyn]

I ordered a 42 SS MIL as soon as I could after midnight on April 10th and FINALLY my watch is shipping today. I get it tomorrow. Pumped.

On a whim I posted the watch on CL for $1,100 and ironically I regret it. Almost immediately I had someone email me saying they want to buy it tomorrow and asked me where I want them to meet. After the sales tax I paid that's close to a $350 profit if I sell. The 42 SS MIL is exactly the model I want. Apple store shows July shipping for this model.

So because of the economic principle of opportunity cost I've now put myself in the position where I have to decide if I want to pay $350 for the privilege of having the watch now instead of waiting two months. My mind's telling me no, but my body, my body, is telling me yes! :/ What should I do...

Sell it and buy a Watch with Link Bracelet instead with no extra cash out of pocket.