If I compare among bitcoin and ethereum then I will suggest you to buy ethereum because the price of bitcoin is high.
That's a flawed reason if you stop people from buying bitcoin. It doesn't mean that just because it's expensive, you'll stop them from buying. People can buy bitcoin at any amount at the market's price.
You will be able to buy a good amount of ether. Otherwise, you should invest on TRX, AME, STC, YOUC. All these are much potential at this stage.
And that's the same with bitcoin, you can also buy it on bitcoin.