Which model Tokaido? Tokaido has made in Japan gis, and Pakistan made gis. The Pakistani gis aren't nearly as good as the Japanese ones, so I'm lead to believe.
Everyone and I used to wear Century heavyweights at my former dojo. They'd last about 2 years or so. They'd get pretty disgusting looking in that time too - they'd turn yellow and gray.
Because we were college guys who lived at home and had a good amount of disposable income, a classmate and I bought expensive gis. He bought a Tokaido Ultimate, and I bought a Shureido K-10. Our sensei shook his head and asked why we'd ever buy gis that expensive.
I wore mine 4 nights/week, usually back to back classes. Washed it in warm water with bleach and machine dried it. Every night. About 3 years after, it was still as white as it ever was, minus a few drops of blood (which made me look tough). My sensei asked us one day if we bought more of them; nope, they were the original and only ones. I wore it for about 5 years, and it still looked really good and showed no signs of wearing out, minus the logo patch coming off. I left karate for grad school, and the Tokaido guy left for the police academy. Had I not left, I'd probably easily get another 5 years out of it. He probably would have too.
We didn't do much throwing/rolling/etc. I doubt it would hold up very long with full-on Judo type throws though.
I've heard Tokaido's quality declined a bit. I don't personally know anyone wearing a newer one (like made in the last few years), so all I know is what I've read online. And you know how that goes. I bought a Shureido K-11 about 7 months ago and the quality is just like I remember the K-10 was. I do however wash cold and hang dry.