Is enjoying Aldi wines an indicator of unsophisticated taste buds?

I am fairly frugal. Not out of necessity, but because I enjoy minimalism and finding good value. I also enjoy a good glass of red once a fortnight or so. My go to bottle shop is Aldi. Yesterday, I had a glass of red wine from Spain, which cost me $5.99 for a bottle. I encouraged my mate to buy one and give it a try as well, but he dismissed me, saying that he deems anything cheaper than $15 or $20 undrinkable.

Is this the general consensus among Australians or does anyone else here appreciate Aldi wines? Are my taste buds unsophisticated? I do know nearly half of Europe drinks wine almost on a daily basis, and usually not the expensive kind.