I had an R2R machine in my studio but one thing that would have really bothered me for playback in a hi fi system is the noise tape makes banging off the reels as it spools from one to the other. And you do need 15ips for proper quality. Lastly, the playback electronics in a lot of pro audio R2Rs were of fairly average quality, so no surprise that there is an audiophile industry in replacing them. All that is aside from the cost of tapes and the question of how many of those available are generaltionally close to the original mastertape.
I can see the attraction of it all, but in opportunity cost terms for SQ v spend, I personally couldn't justify it.