I bought this thing over 27 years ago to build my workshop and it still has its original motor brushes and blade. The only modification is a 2mm rubber dust deflector screwed to the bottom of the dust extraction port. Does make a difference.
Of course it's limited on the maximum width of board it can dock but on the rare occasion I'm docking really wide stuff I do it on the trestles with a circular saw.
The newer versions of this venerable classic are the same price now. Amazing.
Yes I could have bought a RAS used for less but they are space hogging, finger ripping pigs. IMHO.
Worked in many shops where the lads refused to use them and docked with a compound chop instead. Any cabinet shop guy will tell you there are good and bad when it comes to compound saws. I've never used a DeWalt I liked. Some styles of Makita tended to get gummed up turntables.
I'm surprised this one's still going actually but it's still accurate enough for some mitre work including glazing bead.
Some guys are hard on these saws and commercial shop's usually have a mixture of them dotted around the place. Some are noisy and horrible, some are okay and if your lucky there is one that everyone fights over.
A few years back when things were tight I returned to full time work in a joinery shop for a while. All their chop saws were clapped out so I brought in my own. Everyone started borrowing it. So I took it back home before it got killed.
I keep waiting for it to die and it's still going strong.
Funny story. One place I worked at the De Walt was our only option for mitreing big mouldings. It was hopelessly inaccurate so we had to spend ages trimming with low angle block planes after the cut.
Much cussing.
" The boss won't buy another one until this one's totally f'd " Said the foreman.
So one of the boys kicked it off the bench !
" Is that f'd enough ?"
We blamed it on a hard knot and excessive blade wobble. 
Docking saw. The classic Makita LS1212.
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