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Costco has the Perfect Practice Putting Mat (Standard Edition) with the Putting Alignment Mirror for $ 129.99. It is highly reviewed and much lower here than on their website and Amazon.
The standard edition mat is $ 169 on most sites and the mirror is another $ 30. The bundle is available on their site for $ 185
It may still be expensive for what it is, but prefect for those "working" from home.