My Stihl dealer/saw mechanic told me the Stihl HO saws were designed to last 20 hours...that is a lot for most home owners. 2-3 hours use per year is probably common.
I took my 192-T in to get some work done once and he quoted the price to fix it then told me the above.
I bought a 200T instead of investing in fixing my 192T.
The HO saws are basically throw-away saws is how he put it.
I knew a fellow who'd toss a dull chain and slap on a new one.He didn't believe in files, LOL.