In general,

Here in Europe... ( for me personally there wasn't much point getting them from China ). Custom and import fees would easily put an extra 500 to 600 euro on top if the catch you. Wich, they will where I live ( specially with all the terrorism ) anything larger than a pen gets checked!!
So I bought one from the Europe distribution point. A bit more expensive.. bud in return 2-year warranty ( mandatory in the Europian Union ). Easy access if something breaks, https://www.antminerdistribution.com/ that's the website.

The company is legit check all the registers for the company registration.

For the future hard to say..., I took the risk. Think that if you... wager the chance of success against failure there are enough outs to value the amount of money needed to buy one. Even dough it is overpriced and the market is in a bubble. I am newer to cryptos...so just think with common sense .....

or end up as a Donkey or Monkey   ,

Greetings