G,day guys some of you might know that I have a daughter who has a restricted electrical licence, and works in a tool shop repairing them. So I do get mine cheap now.
However when I was first starting in Bonsai, 25+ years ago. I bought a dremel, it is still going and has outlasted all of my friends with the cheaper ones.
I do have a second one now, as the flexi shaft of the later models, do not fit the older models.
I also use the flexi shaft with reciprocating chisels. It is called a Wecheer shaft, and fits the new dremels. I got mine from Timbercon. Tiffany could not get me one though work

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Also the Arbortech rotary cutters on a 100mm grinder, plus the adaptor for the 50mm cutter, and the reciprocating chisels.
I have borrowed my mates elctric chainsaw as well. I find that with most tools get the best you can they will serve you well if looked after, like all electrical tools replace the brushes at regular intervals before they wear down and cause problems.
Always treat tools with respect. Clean sharp tools, are safer than blunt dirty ones, even your poor old Bonsai tools.
Cheers

Pup