Hello. I currently own a 2013 Prius 2 in Barcelona Red. It just hit 90k miles. It's a fantastic car and I have done quite a bit of preventative maintenance since purchase. (Manifold/EGR Cleaning). There is a 2015 Prius 2 also in Barcelona red for sale near me. This one has 175k miles. They are asking $2000. All that it needs is a new Hybrid battery. They are the original owners and have all maintenance records since new. No signs of engine issues, no low coolant. No codes (aside for the hybrid battery). This car is in fantastic condition. Would it be a stupid idea to throw in an Electron Hybrid battery and re-sell it? I have done this job before and know how to perform it. Considering similar mileage, 2015s are selling for around 8-12k around me. Also wondering if all checks out, should I sell my 2013 and keep the 2015? Knowing that the head gasket issues weren't as common in the 2015s. I feel this could backfire on me, but I see a pretty good profit if all works out. Please convince me otherwise!