This is definitely problematic, if the government wanted to get rid of the plane the raffle made sense, it will be a weird prize but one that is incredibly valuable, but now the plane is not part of the raffle at all, they are going to keep it and while the prizes are good this is very different than what they promised at the beginning, it is not a scam in my eyes but it is definitely a huge change, did they explained why they want to keep the plane?
Yes, as far as I know, they want to make fund for some government projects, the money that they will be collected will help them to build more infrastructure, build new programs and many more, also the president is the one who are going to sell this plane, so it is sure that this is true and it will be a win-win for the bettors and for the government of that country.
I agree with you, the totally chance the rules, the prize is totally different from what they promise from the start. They didn't explain why they will keep the plain, but some rumors are saying they get a demand from Boing saying they can't sell or raffle or do something with the plain until they finish the debt with them.
Oh, they have debt? does the government already pay the plane to Boeing? in that case, I think they need to pay them first before make it as a raffle , for no more problems in the future.