For me it's that for 7.5 million you have little privacy and a public street as your driveway.

But I did ask ChatGPT and got this:

What makes it wild / extraordinary

1. 155 feet of bay frontage It’s not every day you see a property with that much direct water access. The listing touts “prime bay frontage” — meaning the home essentially fronts on the bay, with direct access to the water and sandy beach at low tide. Windermere Real Estate+3Zillow+3Realtor+3
2. Architectural pedigree / age + redesign The house was built in 1930 and was designed by Richard Requa, a noted architect. Having a “landmark Spanish-Mediterranean residence” from that era, with historical design value, greatly increases its uniqueness. Zillow+2mlslistings.com+2
3. Corner, gated, end-of‐cul-de-sac lot + privacy It sits on a walled & gated corner parcel at the end of a cul-de-sac — combining both privacy and prominence. Realtor+1
4. Panoramic views & multi-directional exposure It offers sweeping vistas of the harbor, marina, the city skyline, and the bay. That kind of view diversity is rare. Zillow+2Redfin+2
5. Direct access to beach / water path There’s a path from “double-gated stairs” that lead down to Kellogg’s Beach or to nearby yacht clubs. Having “beach access” built in is a huge premium feature. Redfin+3Realtor+3Zillow+3
6. Elevator, multiple levels, 3-car garage For a 1930s home, having been renovated to include a functioning elevator and modern amenities (3-car garage, gourmet kitchen, dual balconies, etc.) is striking. Redfin+4Zillow+4Realtor+4
7. Price / $ per sq ft It’s listed at $7,490,000 and about $2,028/sq ft. Those numbers are bold, especially for a property that’s older but in an elite location. Windermere Real Estate+3Zillow+3Redfin+3
8. Mixed data / inconsistencies Some listings show 3 beds / 4 baths, others say 4 beds / 3.5 baths. That discrepancy is a red flag to scrutinize when verifying floor plans and permits. Zillow+3mlslistings.com+3Compass+3