English to Portuguese Marketing Marketing / Market Research

Firstly, when choosing an educational course, how important is it to…?
1 Minimise the cost of the course
2 Increase your ability to study in your local language
3 Increase the level of academic support from teaching staff
4 Increase your ability to build towards a formal qualification over time (e.g. by completing individual units)
5 Increase your ability to study with an overseas provider (e.g. US, UK, Australia), but still being able to complete the course locally (e.g. online or local campus)

Sugestões são bem-vindas! Obrigado.