Plumbing - fill valves - source? and rant

[newbury]

I've about 10 toilets to maintain. I mainly use fluidmaster fill valves and have become used to having to replace the seal about every two years or so. But I have one Korky also. I buy most of my plumbing stuff at Supply House online.
Now the fluidmaster valve replacements are just a piece of specially shaped rubber about the size of a quarter. I used to be able to get them for about $0.50 or less EACH, in a box of 10. The Korky only sold a full cap for about $2.
Well looks like Fluidmaster has decided to meet the competition, they now sell their little piece of rubber for $23.60 for a box of 10. While Korky is $2.21 each in a box of 12.
I know this is "just a little thing", but all these little things add up.
Any other suggested sources?

 

[not2old]

I've about 10 toilets to maintain. I mainly use fluidmaster fill valves and have become used to having to replace the seal about every two years or so. But I have one Korky also. I buy most of my plumbing stuff at Supply House online.
Now the fluidmaster valve replacements are just a piece of specially shaped rubber about the size of a quarter. I used to be able to get them for about $0.50 or less EACH, in a box of 10. The Korky only sold a full cap for about $2.
Well looks like Fluidmaster has decided to meet the competition, they now sell their little piece of rubber for $23.60 for a box of 10. While Korky is $2.21 each in a box of 12.
I know this is "just a little thing", but all these little things add up.
Any other suggested sources?

I've been using Fluidmaster for more than forty years and have never needed to replace a seal. I'm sure that at least for a few of them, I still had the house for a half dozen years or more.