Indeed you are correct, bad or no customer service is a sign not to do business with that company. If they don't assist you before the purchase, you can presume that they will be of no help after. Personally, I have bought two Alienware computers, a laptop 12 years ago and a R9 about a year and a half ago.  I custom ordered through the web site and never contacted a sales person, hence no problems.  I did contact service via email once when a version of Alienware Command Center stopped working, but they were useless and their standard answer was "re install Windows".  I waited a few months and the next version of the program worked fine.  Rather than admit that their program was buggy and to wait for the next version, they advised me to jump through hoops with a new install after I had months of data added to the hard drive.  Needless to say I know now not to bother contacting them.  You get more correct information on this forum if you run into any difficulties.
According to the responses of retail stores, the list of which is posted here. Dell Alienware Aurora R13 deliveries to Russia are expected only in February next year. I received such answers to my written requests to these stores. First of all, answer me is this really so? If this is true, then of course I am not interested in waiting 4 months and will find another company who is interested in my $5,000 and who is ready to sell a top end computer. But I want to understand one thing, have you turned from a large international company into a regional one? And do you carry out all deliveries only to the domestic American market? Why does your official store not deliver goods abroad? What do you care about crazy customs fees and expensive shipping costs if they are paid by the buyer? I have always been amazed at companies that voluntarily refuse money.
Why can't I buy a computer from Dell?