Interesting question. The best price per sq ft could mean cheapest or best value. When you are considering the price per sq foot of a condo you should also take into consideration the monthly maintenance or condo fee. Location alone makes a big difference in downtown St Petersburg. If you are comparing the Beach Drive condos (including the Vinoy Place and Bayfront Tower) you still have to determine the condition of the specific high-rise. If you look at the Bayfront Tower you are talking about a building that is over 30 years old. The Florencia, Cloisters or Vinoy Place you are talking about older buildings (12-14 yrs) so you need to consider the age and condition of the HVAC systems, elevators, pool, gym, community room as well as the interior design features including the carpeting, tile etc to determine if the high rise is functionally obsolete. If you are paying for amenities they should be of the latest technology. If they are not then you should check to see what the plans of the Condo Association is to bring these things up to date. THEN you must look at the individual unit to see if this has had updates to the kitchens and bathrooms since it was first built. Only when you take these things into consideration can you determine what is a good investment or a "best price per sq ft."