I've use some $1 hosting providers; they're just suck and gone. Down time happened like crazy. High quality domain became worst.
If it's for not so serious PBN; I don't think much.
But, if your PBN sites are your serious and valuable properties, I don't think it's good idea to host on cheap, $1, hosting providers.
There are many risks including high quality domains become low because of downtimes, errors, slow server and disappear in no times etc.
It's easy to find $1 hosting in Google, but you won't find any serious reviews about them. If your're lucky enough, you'll get just a few providers with good rep.
Anyways, it's good to differentiate for PBN.