Well I decided that I'd try a MSA220 so I looked at the local dealer list for a Stihl saw shop where I could trade in a saw. I see that all the saw shops have been replaced by hardware stores, some of which don't even sell parts or do service work, I don't think any of them are likely to sell used saws. I doubt any of them would be interested in trading, or even see any value in older saws like my original 10mm 044. Sigh.
People underestimated the real value of a servicing dealer, and try to buy at big box stores, or on line, to save a few dollars up front. Then when they need support . . . .
Your 'original 10mm 044' should get a lot of interest on CL, on here on the Trading Post', if in good, running condition. Probably get more than a trade in value. Then, you can choose whatever saw you want.
EGO generally gets good reviews. I recommend having at least one spare battery, regardless of the brand of tool. That is why it makes sense to look at the whole line of tools that are supported. I have seen cases where I could buy a string trimmer, with a battery and charger, for not much more than the spare battery. After that, the batteries get shared across a variety of tools.I just bought an EGO rechargeable string trimmer . . .Anyway, so far I am fairly impressed with the EGO, although having only one battery sucks.
One battery charge (the smaller one) with my Redback 120V chainsaw. Silver maple, up to 18" max.I cut all this with 2 batteries rotation in the charger and other things when they were cooling and charging.
Oregon 40V saw (large stuff cut with a corded electric saw - both with PowerSharp chains)
Philbert