ETH is great, but it has some scaling issues that are going to take years to sort out.
One benefit of ETH over BTC mining is that PoW mechanism (ethash) has, so far, kept most ASICs off the network (1). This has prevented the speed / power race BTC faces. In addition, the fastest GPUs are not necessarily the most ROI efficient, so people aren't EOL'ing their hardware every week. Even better is that GPUs still have life after mining.
(1) Yes, there are ethash asics, but being a memory constrained algo means that at the end of the day, the limiting factor is memory, not asic chips. The other issue is availability... shipping asics out of China is expensive.
One benefit of ETH over BTC mining is that PoW mechanism (ethash) has, so far, kept most ASICs off the network (1). This has prevented the speed / power race BTC faces. In addition, the fastest GPUs are not necessarily the most ROI efficient, so people aren't EOL'ing their hardware every week. Even better is that GPUs still have life after mining.
(1) Yes, there are ethash asics, but being a memory constrained algo means that at the end of the day, the limiting factor is memory, not asic chips. The other issue is availability... shipping asics out of China is expensive.
Disclosure: very very large ETH miner