Laramie, there should be a significant difference in the pricing of a (relatively) long term rental vs a short term holiday rental, so your point is irrelevant.
My point is not irrelevant. Yes you can negotiate a cheaper price for a long term rental in Madeira but you can also negotiate a cheaper price for a long term rental in the South of Spain or Portugal. Did you not consider that this might be the case. Did you actually think that the prices would drop for a long term rental in Madeira but not drop in mainland Spain or Portugal also?
I have rented apartments in Spain and Portugal and Madeira and I can guarantee you that it was expensive to purchase foodstuffs in the main supermarkets in Funchal. More expensive than mainland Spain or Portugal.
Have you rented any apartments abroad? Have you written any reviews?
I have.