I had both, and in my opinion Asics are almost set and forget, my s7's and s5's ran for months without any problem or intervention.
GPU rigs are fun to build but a pain to maintain ( until you fine tune them, that would take time).
GPU rigs are fun to build but a pain to maintain ( until you fine tune them, that would take time).
I like the statement above.
Personally, I'm GPU miner. I had leave ASICs a few years ago (my last ASIC is Antminer S2), that Isn't mean GPUs rig more profitable than ASICs. Both have N factor that we have zero control over it.
Let say:
Electricity cost,
Coin Prices,
Difficulty,
and some unpredictable thing.
(GPU / ASIC) optimization and profitability will depend on "whose that behind the machine." IMHO
A miners passion also affect to which machine that more suitable and explorable for us. Ask yourself, which type of miner you are? Then you can decide to choose which machine that you need.
We can compromise on another thing, such as:
Noise: many ways to reduce noise,
Heat: It was not a big deal, an even DIY cooling system can handle it. Be creative,
Limited Space: If we are creative enough, we can handle this.
and so on...!