Saddlebags are sometimes a hit and miss proposition...
My old Shadow had Willie & Max throwover bags that literally outlasted the bike. (They were still good enough that I was actually able sell them off.)
As I began making longer trips I found I needed more carrying capacity, which is the only reason I replaced them...With a new pair of larger Willie & Max bags. The new ones went through many miles of hard use until the top of the throwover portion started to tear. Neither pair ever leaked.
At that point, I had purchased my C50 which already had much more expensive Saddlemen bags on it.
Nice bags, but I've still had to resew part of one of them and do some other repairs...and water was able to leak in regularly.
So price had little to do with longevity or robustness in my experience. I also can't say my easily removable Saddlemen bags are enough of a big convenience over my throwover bags to justify the price.
PS: Willie & Max made their saddlebags of Naugahyde with is like leather without the maintenance. It seems they now are using leather, so their website claims. All bets are off regarding my previous experience.
I'd still trust them.
PPS: My opinion only, but if my bike ends up on it's side, I'd rather have soft bags that won't crack or break.