In 2012 I bought a built-to-order retina macbook pro. Since then I've had the following repairs done: - screen replacement for ghosting issue (feb 2013) - motherboard replacement (mar 2015) - top casing replacement (mar 2015) - motherboard replacement (mar 2016) - covered under 'Customer Satisfaction' as Apple care has expired. Today I dropped the machine off again with overheating issues and 'visual anomalies'. I'd be interested to know if anyone's gone through quite so many repairs on one of these models. At what point do I stand a chance of asking for a trade-in or a new machine? Are newer rMBP models more reliable?