Macbook buyer's guide: Louis Rossmann's recommendation list
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Mid-2013/Early 2014 13" MacBook Air [1]
Late 2013 13" MacBook Pro Retina [2]
Late 2013 15" MacBook Pro Retina with dedicated GPU [3]
Mid-2014 13" MacBook Pro Retina [4]
Mid-2014 15" MacBook Pro Retina with dedicated GPU [5]
Lenovo ThinkPad P52 [6]
[1] https://everymac.com/ultimate-mac-lookup/?search_keywords=26...
[2] https://everymac.com/ultimate-mac-lookup/?search_keywords=26...
[3] https://everymac.com/ultimate-mac-lookup/?search_keywords=27...
[4] https://everymac.com/ultimate-mac-lookup/?search_keywords=28...
[5] https://everymac.com/ultimate-mac-lookup/?search_keywords=28...
Total cost: $700. This MacBook is 6 years old and it was totally worth it.