I've bought several suits over the years ranging from $400-$1800. Hugo Boss from Harry Rosen x 2, a suit from Zara, and two Strellson from Grasby's and the Bay Downtown.
Hands down out of all those suits, the Strellson and Zara suit were the best.
The Bay Downtown has amazing sales every now and then where you get 40-60% off suits, pants, shirts, ties, etc. They're high quality clothing for VERY affordable pricing.
After spending $1000+ on suits in the past, I see no benefit over those suits than the ones I spend $400-$600 on. I would rather buy a few different suits for $500/each from Zara or The Bay than buy one suit for more money that ends up being no better in quality or design.
I bought the bicycle suit from Strellson and it's one of my favourites thus far. It's dirt and water repellent, straight cut and very comfortable. There are zippered pockets inside the pockets to hold valuable items and is very breathable.
Of course, it all depends on your size and style but if you are a slim/straight fit type of guy, give Strellson a try.