How do you pick your gear? Tips and insights are welcome.

Nothing is more important than your ears.  Demos and auditions are the key.  A friend group of like interested folks is also a great way to hear what different gear can and can't do.

For speakers size, brand, that fits my room and budget.For gear preamp and amp make sure they will match the speakers. Source I prefer brand new especially for SAcd players, transport because lasers do deteriorate in time.For cables I prefer to hear them how they will match the system. Except source I prefer used to save money. Does  sale people has influence on my decision if they are knowledgeable and honest yes. For the most part no. Technical measurements not really, it’s the performance of the gear that influences me.Aways listen first before I buy only if accessible.Why going to Axpona helps because many manufacturers showcase their products and for three days you have the opportunity to hear them. Shows helps a lot.

Personally, I learn about new gear becoming available via YouTube videos, and I watch reviews on there and do further research in online articles, forums, etc. If I can, I'll try to audition, but that sound in the shop may not be at all what it sounds like in my room, and much of what I'm interested in is not available for me to hear locally anyway. I also look for a good return policy in case I'm dissatisfied.... 

Each of my pieces of gear has a different story. Back in the day (25 years ago), there was a good dealer in KC that had a nice mix of products to demo. I discovered Von Schweikert as a result. I bought my current Von Schweikert based on reviews and my familiarity with the company (and conversations with Damon Von Schweikert). I discovered Coda about the same time as my first set of Von Schweikert. I bought my current Coda based on my familiarity with the brand and conversations with Doug Dale (great guy). My LTA MicroZotl preamp was recommended to me by a friend I met on a conrad-johnson FB page. I also checked out reviews. Other gear was selected based on review or just a gut feeling and a roll-of-the-dice. I’ve purchased some cables that didn’t pan out, but I’ve done well with the hardware, I think.