Well, it depends which items you're getting. Obviously, since it's a month long sale, don't expect all prices to be slashed by 50-60%. Then again, the items are decently discounted by about 20-30% so you still have a couple of weeks to save up and come up with the dough. You save a nice amount of money, which you can spend on miscellaneous accessories after that. The best part? There's no 10000km long queue and you can test out the gear before deciding.
Plus, most of their staff from my experience are super friendly and would be more than happy to serve you. I have the catalog with the prices from last year's sale so i'm hoping it's a rough estimate on the prices for this year's sale.