Triple or double glazed windows?

Have not found anything on this topic so far. Since the window trade is slowly coming up for tender with us, I wanted to check here whether you tend towards double or triple glazed windows. The advantages and disadvantages are fairly obvious, the question is whether triple glazed windows are really worth it and whether you should definitely go for them? Of course, it would also be crucial to know how much the additional effort would technically cost in € for triple glazed windows.

...The advantages and disadvantages are fairly obvious, the question is only whether the triple-glazed windows are really worth it and if one should definitely do this?

That can be calculated (or have it calculated). ;)
Moreover, an Energy Saving Ordinance/KfW certificate is probably required. The window values (Uw,g) are taken into account in the calculations.

Best regards.