Regardless of what style you choose, they are worth it. I use the Rollers and my wife likes the Packers. There are pros and cons to each. We also prefer yellow because they are visible. We did a tour this summer that included 35 days of rain, and were we glad we had them!
I was lucky enough to find this dark cherry red LHT frame a couple of years ago.
The classic roller material is really tough. This was due to a major run in with a high curb. I tried to grind down several feet of it with the right front pannier. It is still waterproof as the interior coating is still intact.