One thing you will find. There are as many opinions as there are people. Ultimately -You, will be the jury and judge. If you buy something and don't like it. Sell it. Yes, you'lll probably take a monetary hit, less so if you buy used, but nothing in this 'game' is cut and dried. It's all trial and error. If you ever figure it out, write a book - you'll make a million. :-) good luck.
Paul
Paul