It depends. Ordinarily I won’t do it. But I tend to do it if I have a friend in need active. Or if I’m doing a QL party. But anyway, i know players doing that as a systemI do agree with the hard-to-get building parts, but I will use them there only as a last resort.
I can visit 12 neighbours... I can't imagine watching 12 ads of 30 seconds each every day that I'm visiting the neighbours.
about building parts: it’s almost mandatory to use videos or greenies to get parts for mcc3 for example