I went through my record to see what the "tune up" cost me. Spark plug wires were ~$57 Labor was ~$144. Spark plugs ~$30 and ~$101 for fuel system flush and some O rings (?)
The car had been acting strange and I thought it was a trasmission problem. It was all tune up related problem. The selling point of 100,000 mile tune up interval was BS. This was all done at 60,000 miles.
The ignition resistor problem was a ~$44 parts and ~$177 labor job.
Tune up = plugs, wires, fuel filter, PVC valve, air filter.
Yes you could do this yourself. Plugs may be a PITA to get out and replace, especially those up next to the firewall.