Yes its way more expensive than other gutters, yes I got the info through costco. its American, not Canadian, but these gutters are really top notch. we have gutters that are extremely high, and lots of trees on our block.. so Im not going to clean them and having them professionally cleaned is expensive due to the height. so I opted for these leaf guard gutter system.. these are heavier duty and larger service than other gutters and downpipes. each downpipe has a slide out catchment to putt out any small things that get through.. also the lifetime of no clogs is a pretty tempting thing for me as I said.. my gutters are very high and Im not schlepping up that ladder to clean it.
Bottom line.. I would have opted for something cheaper if my gutters were regular height and easy to access, but due to situation leaf guard was a no brainer for us.. we like it..
one gripe is the catchments are loud when raining hard, but we put a peice of aquarium filter in there and it dampens the sound a bit.