As with everything else in life, you get what you pay for. Many of the "low cost" PCs on ebay suffer from poor tailoring (which results in an ill-fitting jacket) and are made from inferior grade fabrics. Your best bet is to save up a bit more of the hard earned stuff (cash) and buy your jacket from one of the vendors here on XMTS.

As a personal observation, I would suggest that you are better off in the long run buying a dress Argyll jacket in black, as it is far more versatile, given that it can be worn during the day, as well as in the evening, something one cannot do with a PC.