I think the St Helens permit just doesn't sell out like the others because of the much higher number of permits offered. Also, elk numbers are down due partly to hoof disease, which is pretty bad in the St. Helens area.
I haven't hunted Winston, or any of the St. Helens GMU's since it went to access by permit only, but I do feel it would be worth the money if you have no other areas to hunt that you're already familiar with.
It's $300 but it gives you a full year of access behind locked gates to nearly 400,000 acres, and it allows you to camp behind the gates, so you don't need to drive very far each day. It's a much larger area than any of the other permit areas.
I feel it's a pretty good option and if it weren't for the hoof rot it would probably sell out much faster.