Here’s a way to buy Rhinoceros 6 for just 3 146 Kč (approximately 122 €). Just fill the form and send a copy of your ISIC (proving that you are a student) to the Dimensio company. It’s even cheaper than ever before. The only problem is, that the form is in czech language… :D
https://forms.gle/Zz8tfdCxWHZjtxWm9