And it's certainly not economic rational self-interest.

You are trying to rationalize folks' discontent with Disney and/or determine the cause(s). 

Contrary to popular belief, cheaper properties with high rent to purchase rations are usually really tough deals to make money on and not really great starter deals. 

I follow these forecasts monthly (and talk about them on my YouTube channel) and in hindsight when you look into the details the rational they were based on is probably still correct, but the timeline was too optimistic.

You may be able to qualify for partial exclusion look over publication 523 for some bedtime reading...My opinion is be an investor first it is ok to make money in the game and pay taxes does it suck sure but sometimes it can be rational and optimal. 

I haven't heard anything rational or informed that contradicts this.Because of the definition of "creditor" in the law, there's a volume question when it comes to seller financing to consumers.

DSCR stands for debt service ration which means you can qualify based on the rental income of the property.

According to the website of the Ministry Of Tourism in he Dominican Republic.On October 9, 2001, the National Congress approved Law No. 158-01 on promoting tourism development for areas with little development and new centers in provinces and localities with great potential, to accelerate a rationalized development process. of the tourism industry in all regions with potential and natural conditions for tourism exploitation throughout the Dominican territory.In the law above, the Tourism Promotion Council (CONFOTUR) was created, to apply the guidelines of Law No. 158-01, as well as create the conditions and facilities necessary so that innovative tourism projects can benefit from the incentives granted by law.Through Decree No. 372-14, the Technical Directorate of CONFOTUR was created, in charge of handling all technical matters derived from the application of Law No. 158-01 and its modifications.Classification application files, to comply with the terms of Law 158-01 and its modifications, must be sent through the CONFOTUR website by completing the Application Form.

Since MLS is open to most buyers your pool of competition will be very large and most likely someone will over pay for the property that is either not an investor or an investor that fudged the numbers to rationalize the "deal" to themselves.

You're thinking rationally, and by pondering over the property and raising inquiries, you're headed in the correct direction.