A area of interest style emblem in Toronto completed 4.4x combined ROAS by way of catalog depth, retargeting windows, and UGC.
http://news.augustaheadlines.com/story/580663/qliqqliq-study-reveals-google-ads-costs-across-19-canadian-industries-with-some-keywords-exceeding-894-per-click.html
A niche model company in Toronto done 4.4x mixed ROAS via catalog intensity, retargeting home windows, and UGC.