I have to chuckle at the brand wars a pro saw is a pro saw
I also chuckle at the neo Luddites can anyone honestly say that they wish their vehicle had breaker point ignition and carburetor other than for nostalgia , its cool if you like "old" stuff just don't try and convince others that your personal preference is better in any thing other than feels ..
learn the strengths and weakness of the tools YOU USE and you will get the most out of them
I am not good at it ( to my level of liking ) bu the most important tool in woodcutting is a file
Ford vs Chevy vs Dodge, vs Nissan vs whatever they all have their pros and cons they all pretty much do the same thing.
A 50CC saw is pretty much a 50cc saw , a 60cc, ect all
I like huskies I have no problem using whatever
Buy the tool that works for you and that you like ...... longevity may or may not be a plus depending on your business model.