I actually purchased a heavy Magna bicycle for my multimode commute in New York City years ago. I purchased it because the station at 59th steet and Lexington was a NIGHTMARE at that time. Well I knew the bike was a POS from the start so I kept it in one gear and didn't bother shifting at all. It rode like a tank and I actully purchased slick tires but it was still a slug!
Well you would think that cheap bike would not last at all on the streets of New York City but that heavy aqua Maga mountain bike was the exception. I left that bike attached to a pole at 34th street each night and no one bother to steal it! Even the bike crooks know better than to steal that bike. That bike actually paid itself off from not having to use the subway for an entire year. During the back out, I rode that bike all the way to the George Washington bridge back to the Path Station in Jersey city!!! I was never so exhausted in all my life!! LOL.
Once I changed jobs, I no longer needed to make the commute so I removed the chain and left the bike right on the street. It took 10 days for someone to finally steal it!