Probably not $50k. It's an ungraded beta, but should pull a 6 without much issue. The Serra is beta too. I don't have any alphas. I got into Magic during Antiquities/Legends, back when that beta Black Lotus could fetch about $200 from some desperate sucker,, and even then alphas were rare.
I started in 4th edition. Saved up my allowance to buy super expensive (to me) $20 dual lands a few times (which I lost or were stolen over the years). Always wanted to buy a black lotus but $300 was a lot for a 7th / 8th grader. Couldn’t believe people spent that much. Still hard to believe it would have been a good investment and worth more per ounce than gold. They’ve lost a lot of their value with reprints, but best I was ever sitting on was a set of FS Goyfs, all the shock lands, most of the sac/search lands. Getting married and having kids really put a dent in my playing time and money. Kids are getting old enough they are learning though