it sounds like it is a fashionable "fad" thing. let's face it guys, horsepower is horsepower and cc's are cc's. the only difference is maybe the plastic housing. otherwise, it's still the same power (mathematically and mechanically). it's not as complex as a 4 cyl. car vs. 4 cyl. truck where the gearing ratios are different when connected through the transmission and all.
today i used a Craftsman 18" 40cc gas chainsaw for $150. that's 5cc's MORE than the $500+ STIHL. it's all brand naming and clever marketing on STIHL's part. the executives at STIHL are laughing at everyone. who do you think pays for all their sawing competitions, sponsorships, big trade show booths, and dealerships? it's all added to the saws cost.
the craftsman cut through a log like butter. i took me the same amount of time as when i use my STIHL ms440. go figure. i feel like i spent $750 on the 440 and all i really did was help pay for STIHL's next ad campaign or NASCAR sponsorship.