Stunning retina Macbook Pro 15" with highest specs in e market! in Upper Thomson Road, Northeast Singapore for sale

Pre-loved, but in perfect condition, occasionally used, NEVER travelled around with, always at home. With upgraded processing power and memory, it is more efficient than most iMacs!
Current Late 2014 model with similar specifications sells at $4057.00 with apple care protection plan!!!
Early 2013 15-inch MacBook Pro with Retina display
With the following configuration:
• 2.8GHz Quad-core Intel Core i7, Turbo Boost up to 3.8GHz (upgraded)
• 16GB 1600MHz DDR3L SDRAM (upgraded)
• 256GB Flash Storage (default)
• NVIDIA GeForce GT 650M 1024 MB (upgraded)
• AppleCare Protection Plan for MacBook Pro (Valid till : 19 May 2016)
• Protected with screen protector and Crystal Clear Speck (*) Case from unboxing