I can't improve much on what Dopogue said:
*Reel-to-reel tape is the ultimate hair shirt medium.*
Except to say, ALL tape decks break. Repeat that about 100 times: ALL TAPE DECKS BREAK. Even cassette decks. If you like the idea of schlepping a 50-100 lb. 20-30 y.o. RTR deck every so often for repairs (to where?), you'll love an old Revox or Tandberg, or Tascam.
On the other hand, I've also found that "all CD players break". I just spent 2 hours packing up my 36 lb. $3000 CD player to ship for a minor repair, & for today I've almost sworn off CD players for TT's.
Ever seen the scenes in Pulp Fiction with the great pad with Uma Thurman working the cool looking RTR deck? Tarrentino doesn't put ANYTHING in a movie unless for a reason.
Even if the Revox breaks, or doesn't work out, there will probably be an even more crazed audio nutcase out there to sell it to.....