Heaver grade vinyl vs Standard

Heavier weight means the record should be more durable and be less susceptible to warping over time. Heavier weight is probably a general indicator of a higher quality product, but assuming no warping otherwise, sound quality will be determined more by other factors on a case by case basis.

In general, I think heavier weight vinyl in new issues is designed to appeal to the target market of vinyl affectionados that will appreciate a more heavy weight product and be willing to pay for it. But there is probably a good chance that on a case by case basis, standard issue vinyl recordings from yesteryear that were made in the time when records ruled for most may sound as good or better.

"The software actualy on the market is much inferior than on golden era of vinyl, even with the best mastering facilities."

Well, you said it...the golden age of vinyl is past and gone.

If you don't have a lot of records already, buy a half decent CD player and spend your money on some good music to listen to. Or buy a decent tt and hit some flea markets and enjoy all the great OLD recordings that are still out there in decent condition that can be had for a pittance.