Well some old machines from the 1970's( J-corder Technics by Tape Project & Mira from Acoustic Sounds) have been repurposed. Some have their recording features disabled with other models having recording features for a additional 2-3K USD. Pricing is similar to the ReVox MKIII.
I'm not sure why anyone would buy a tape machine without recording capabilities but apparently some of do.
If I were buying new these days I would probably get one of the current Nagra studio machines. Those run at around 40,000€. But I'm very content with the MKIl and ReVox still provides support so..
ReVox also sells refurbished older machines on their web site like the MKI & II, PR99, & A77 for those that may be interested.
As for recording tape I've no idea anymore.
Ampex was sold to Quantegy around the year 2000. I'm not sure if Quantegy is even still in business I've not checked. I'm out of storage space so I'm done with recording since 2006.