Worth upgrading my cables?

You have good wire already.  Depending on what you replace with, you may notice a difference, but you may not prefer it, or there may be no difference at all.  

I'm of the school that I'll put my money towards components first while have well constructed cables. I use Mogami wire for just about everything - RCA, XLR, and speakers. For power cables I use Pangea plus home-made cables using high quality  Furutech wire and connectors.

Can I do better?  Dunno but I'm okay with that

Thanks for all the feedback. Nice to see the full gambit of audiophile responses. My suspicion is that my current wires are about 70-80% as good as the rest of my system and while there is likely room to gain subtle improvement it may not be the best bang for the buck. Really the root of my question is... I'm I holding my current components back by not upgrading my cabling? 

If you want just a bit more bass to the sound. Add a furutech NCF rhodium connector to the power cord connected to you amplifier/dac. The carbon fibre/stainless one is the best one.[pricey but cheaper than changing cables]. I also have furutech NCF silvers to boost mids and treble. My power cords are Black Cat Silver.

@designtaylor

When we want to understand cables, we measure them. The inductance, capacitance and resistance of a cable can define what it can do, vs what it can’t. Cables are just a bridge between 2 points...and low resistance is the most important factor.

Human hearing is quoted to be 20 HZ to 20 KHz, or 12 HZ to 28 KHz for people in ideal laboratory conditions. Hearing differences in otherwise good-quality cables at the same lengths is usually small amounts of gain differences (volume not matched, or an inferior conductor, such as CCAW or lamp cord which can be either be too thin-sounding, or with a slight edge of warmth. We don’t want the metallurgy of the cable to influence sound quality. We want the cable to "get out of the way" and allow the electronics to perform.

High purity copper, PCOCC copper, cables from pro audio brands - Belden, Mogami, Canare, or silver/silver-plated cables are just fine.

Some high-end audio cable companies want you to believe there is a hierarchy of "improved performance" when you move up their product line.

If their lower-end/cheaper cables are inferior...why are they producing them in the first place? It’s not like buying a car with different trim options...

I do not trust audio cable companies that make claims of performance-specific improvements: better bass, midrange, treble, imaging, etc. substantial changes like that cannot be determined by cable companies who have never heard your system before.