Buying LCR Meter or Digital Capacitance Meter
If you want to test coils and capacitors i would suggest you to buy both the meters. Why? because the LCR ( Inductance, Capacitance and Resistance) range have some limitation especially on the C and the R range. Both ranges are not wide enough to test the resistor and capacitor values. A stand alone Digital capacitor meter have a wider range and could test all kind of capacitor values. This is also same for the digital meter. I mainly use LCR meter to test inductor value only. However if you could get LCR meter that can test full ranges of C and the R then it is not necessary to buy the digital capacitance meter.