When considering a "sponsored event," especially for something in a professional field, any location (as you mentioned) that someone would go to on vacation would be unreasonable. My first thought was some tropical location that may have ABSOLUTELY nothing to do with the topic at hand. For example, if the field someone is practicing in is related to implants, and there is no known viability or utility involving a cruise from Alaska, that does not seem like the best place to have a "Sponsored Event". it can especially be tricky in places where laws and regulations may be different to your current place of work. For example, certain stem cell treatments are available in South America, but not cleared by the US. It would be unreasonable to hold an event in a place where, although it is in the respective field, certain regulations are not being followed by this location. The overall atmosphere should be one with a work-like environment, not somewhere to make up an excuse to get a vacation (for a sponsored event of course). People can go on vacation wherever normally...

Events held in anything considered non-professional, especially in the context of medical industry, can be considered an unreasonable location. Events held in resort locations, exotic destinations, or business' where the primary context is not known for business should be considered unreasonable. These locations give the impression that something shady is going down. Also, of the location is inconvenient or inaccessible, that can also be viewed as unreasonable. The primary purpose of these events is for educational and business purposes and if anyone with a common sense can tell that the location is not reasonable, then it shouldn't be held there. 

In the context of sponsored events and hospitality, the term "reasonable location" is generally subjective and may vary based on industry norms, ethical guidelines, and the nature of the event. The decision on what is considered reasonable or unreasonable often involves a combination of legal, ethical, and practical considerations. Here are some factors that might influence the determination of a reasonable location:

1. Industry Standards and Guidelines:

   • Industry associations often provide guidelines on what is considered appropriate for sponsored events. In the case of Advamed (Advanced Medical Technology Association), they may have specific guidelines to ensure that events are held in locations that align with ethical business practices in the medical technology industry.

2. Local Regulations:

   • Legal and regulatory frameworks may impact what is deemed reasonable. Some regions or countries may have specific laws regarding corporate hospitality and the appropriateness of event locations.

3. Nature of the Event:

   • The type of event and its purpose play a role. For professional or educational events, reasonable locations are typically venues conducive to learning and networking. Extravagant vacation destinations might be considered unreasonable unless directly related to the event's objectives.

4. Cost and Value:

   • The cost of the event and the perceived value it adds are important considerations. Events held at excessively luxurious or expensive locations might be seen as extravagant, raising ethical concerns about the use of resources.

5. Public Perception:

   • Consideration of how the event might be perceived by the public, stakeholders, and the industry at large is crucial. If an event is seen as excessively lavish, it may lead to reputational damage.

6. Business Purpose:

   • There should be a clear business purpose for the event. If the primary purpose is educational, professional development, or fostering business relationships, the location should align with these objectives.

7. Practicality:

   • The practicality of the location is important. Accessibility, logistical considerations, and the ability to accommodate the number of attendees are factors that contribute to the reasonableness of a location.

Ultimately, determining what is reasonable or unreasonable often involves a balance between providing valuable experiences for participants and ensuring that resources are used responsibly. Companies and industry associations typically establish guidelines and codes of conduct to guide these decisions and ensure ethical and compliant behavior in sponsored events. Adherence to these guidelines helps maintain transparency, trust, and ethical business practices.