I agree that whilst the level annual Maintenance Fees for many buyers may not greatly influence which development they choose, but i think it is an important factor. Some people buy for mainly own use, or for retirement on a budget so, for these buyers, they should assessing total ownership costs at the outset.
In then absence of a rental guarantee, then I would envisage the first few years rental is uncertain. The more hotel style resorts may be up and running and producing great rentals quite quickly but, at this stage, I think we have to be realistic, and acknowledge that rental returns are a risk factor to be considered.
Having said all of this, I have heard of some excellent rental returns, especially but not exclusive to, El Gouna.
One tool I use to test the rentability is to rate, on a scale of one to ten, which developments you personally would most like to rent for a week or two. Its just a tool and, thankfully, we all like different things but it does help.
Enquiring as what the maintenance fee includes and then an inspection of a contract for detail is well wrthwhile. For example, does the contract provide for the upkeep of paintwork or woodwork on your own terrace, is there a cash reserve accumulated over time for exterior painting, is it index linked for price rises etc?
There are schemes which enable you to fix the maintenance fee at the outset. However the main concern is that the maintenance really will happen to a high standard, whats included and the cost and possible future price rises.