My suggestion is to determine a price range, and then start reading everything you can about players in that range. You will eventually find a small handful of players that appeal to you (based on what you've read). If you're lucky, you'll be able to audition some of them. Or, it may come down to deciding between features, or maybe just a gut feeling about which one you should buy.
My approach is to buy used players that can be re-sold for the same price. If there's a little room on your credit card, you may want to buy more than one, so you can compare them in your home (and then sell the ones you don't want).
I've done this recently with transports. I now have 4 transports in my home; and will re-sell 3 of them as soon as I decide which one to keep. It takes a little bit of money up front, but I will re-coup nearly all my costs, and will know that I made a good decision.
My approach is to buy used players that can be re-sold for the same price. If there's a little room on your credit card, you may want to buy more than one, so you can compare them in your home (and then sell the ones you don't want).
I've done this recently with transports. I now have 4 transports in my home; and will re-sell 3 of them as soon as I decide which one to keep. It takes a little bit of money up front, but I will re-coup nearly all my costs, and will know that I made a good decision.