If you knew then, what you know now...

Go to many stores, audition lots of stuff. The first time i bought speakers, I only went to one store. I didn't have the speakers for very long. Ignore Stereophile's classification system. As a reference, it does not apply well to real stereo-assemblage situations. I also think it's important to be confident, not letting others dictate to you what is good or bad. The first time in a audio salon was a little intimidating for me, and i let myself be led by the salesman. Now, I've found that i get a lot farther by being friendly with the salesman while taking control of the audition/purchasing process. I put too much stock in the reviews, pro and amateur. Doing that can result in wasted money. Obviously, I've made lots of mistakes; thank god for return policies. Having fun is the most important. Screwing up in audio is much more difficult than getting good sound, so just relax.

My most painful lesson in retrospect: I had an absolutely wonderful synergy with some older Luxman equipment which is of course no longer available. I knew that it would eventually fail one day, & so I tried to collect all of the manuals, parts lists, schematics etc. in advance preparation for that fateful event.
When the amp failed after 14 years service I thought that I was prepared - wrong! The 79 cent driver parts that I need can no longer be found anywhere in the world. I considered trying some equivelant semi's, but was told (by a respected authority who absolutely knows his stuff) that it won't sound the same. I've spent megabucks on other components since then, but cannot come close to achieving that synergy with anything else that I've tried. It would have been way cheaper to buy myself a spare/duplicate setup of that Luxman when it was still available. I had considered doing just that many times, but I didn't & now I'm still kicking myself.

What I really know now after moving 9 years ago into my present environment is how very very important a good room is. Components aside, the room can be the most important component in making even a modest system magical. It is going to be my next major upgrade.

If I knew what I know now back in the day I would rather get into herion. It is also a conversation starter when someone asks "what are you up to?" you can reply with "shooting herion" which always gets a better response then I am into high end stereo, try it some time. But really I would buy everything used if I could do things again.

if i had to do it all over again, i'd be born rich, living my life as a trust fund baby and ignoring the hoi poloi on this most pedestrian of audio sites; should I, quite unlikely, find it amusing to listen in on your rf static, i'd have my secretary input all my putdowns. in other words, i'd have the best b&o system my unearned income could buy.