Someone is offering to sell me an Apple MacBook Pro 13" Early 2015 (3 months old) for $300. The laptop has previously has water spilled on, but is still functioning correctly. I opened the bottom case and can see some corrosion, so I plan to remove & clean logic board. The keyboard is working fine, but I planned to replace that as well. I have previously serviced many MacBook Pros and MacBook Airs, so the disassembly doesn't dissuade me. Anyway, is $300 a good price to gamble on this?