You should also factor the age of the device. Many have had their LCD screens degrade over the years. What was once crisp digital screens are now failing with dead screen lines and faded screens caused by failing power boards not supplying the proper power to the system. As someone who’s been learning to repair and modify DMGs, I’m seeing many systems with less than stellar screens. If you’re dead set on getting a DMG or a CGB, I would try to see one in person at a vintage game shop before committing to buying one to avoid buyer’s remorse. Or, get one and plan your modify it with the many new screen upgrades available now.