Is it possible to be an audiophile and be happy with what you have

Depends on how thick one's wallet is

To me what it is to be an audiophile is to be one who loves listening to music and always wants to hear it a little better if they can.   The last three words "if they can" are critical.  All engineering is a matter of design compromises and optimizing your result given the constraints you have.  For audiophiles, the most obvious is budget.  But there are other considerations - compatibility of a prospective new component with the existing system, WAF, room size and character, etc.

Contentment doesn't come having a perfect system.  It simply comes from within your own heart.  Just enjoy the tunes and enjoy the process of learning about your system.  If you want the most pleasure, then DIY is the way to go.  There's little more pleasurable than building your own gear and having it perform as well or better than a kilobuck commercial component.

Yes....like motorcycles and motorcyclists when they gather, "You run what you brung."

Remember?  We used to listen and be happy with equipment that now we'd equate with paper cups and string for communication.

One could sniff and laugh at what I listen to.  Others might look at it as more on the order of 'test equipment', which is how I relate to it of late.  Not 'flawless', to be sure, but 'suitable' and 'enough' for my ears and budget.

Chase the light at the end of the tunnel if it suits you.  After a time, the zeros behind the decimal point will not be discernible anymore.  I reached that point awhile ago; now I simply amuse myself and not be concerned with reading reviews and reactions of those who get paid to do so and have the privilege of being able to do so.

I could be crass and relate certain levels of our hobby's extremism to more *ahem* 'personal pursuits*, but people buy Lamborghini's and Bugatti's, yachts, private aircraft, and luxury homes as well....

Not my level, not my thing...