but for 99% of what a DIY-er will do it's more than enough.
Totally agree.
I just get frustrated when my expensive units cark it because I push them too hard (I supposed when I do that it's REALLY pushing them for 1hr+). But I can't take the chance with buying cheap ones.
I used a circle cutting jig before with a less conservative depth of cut and I broke the 1/2" bit before the motor anywhere near bogged down.
Spend more if you want, but for 99% of what a DIY-er will do it's more than enough.