Do you need different wineglasses for different wines, the answer is ultimately yes you do and you should to get the most out of your wine.
The glass manufacturer Riedel from Austria have made a special packaging of five different glasses that are made for to bring out the special character in the specific wine type, Riesling, syrah, cabernet S, pinot N and chardonnay.
I have been using Riedel for many years now and also when I do glass testing with people who are all amazed when they find out the difference of how the wine turns out in the nose and pallet, you should try it if you can, even a bad wine gets better for all of you who cant resist to drink wine from a BiB.
PS. I can tell you a lots of stories about Riedel glass where
A hallelujah moment.