Google Maps is much more than just a map display though: Things like routing, current/expected traffic or business info (opening times, busy hours, ...) are so much better than anything OSM-related services have to offer right now, especially to non-technical users. Smartphone map apps that use OSM are a lot more technical or convoluted than Google Maps sadly.
Yes, and like I said, I still use Google Maps. But I usually use maps to get an overview over an area and to orient myself, not to navigate to a business in an unknown city. And my point still stands, around here Google have the oldest data and most outdated data.