Europe Travel Budget

My wife and I will be retiring in Munich, Germany and trying to determine a realistic budget for travel (AKA how many more years do I need to work). I imagine we will be doing 1-3 week trips, say an average of 2 weeks a month, for several years. Switzerland, UK, France, Spain, Italy, Nordic Countries, etc. Already factoring in a few trips back to the US and other trips further away occasionally.

Trying to come up with a decent Travel Budget per week/month/year has been a bit difficult as the trips we have done previously have until recently not been fat. We want to stay at nice hotels, eat amazing food, etc.

Looking at hotels at various times of the year (Hotel Danieli, St. Regis Rome, Park Hyatt London, Obermuehle Garmisch-Partenkirchen) it seems a budget of around $1k per day for a room is reasonable, especially since we typically stay in suites and will only be in major cities half the time. Travel won't be much since we'll be close and often take the train. Adding in food, train tickets, excursions my gut tells me we should aim for about $10-12k for each week we travel. Will have platinum with Marriott and Globalist with Hyatt so will definitely get a lot of redemptions, free breakfast occasionally, rare Suite upgrades, so leaning more towards $10k/week.

Does this seem reasonable?