Comparing a Yashicamat to a $1000 Rolleiflex is just ridiculous! I have about six "standard-type" Rolleiflexes and 'cords that I picked up through the years when I saw them cheap including $150 for 2.8 E Planar picked up in a small alley shop in Beijing and 3.5E3 with a Xenotar lens that I got from the Rollei email list for $125, yes both of them not in very good aesthetic condition but both of them, after a CLA, are in perfect working order. So you can get them cheap if you have patience. Most I ever paid for a basic, nicer "working" one was $550 for 2.8E2 Planar and I've seen Automats and MX versions sell here for $350-450 or so (which frankly for a hun' or so more I'd much rather have a C or E). If you don't have patience and have limited funds right now then you can get a Rolleicord V or III for $150-250.
Yashicamats are not bad cameras and have their fans, others have noted the differences. Anywhere near the same price it's Rollei hands down for workmanship, build, quality of parts and frankly lens performance most of the time...
Point is unless you must have a Rolleiflex F then you can get one for much, much less than $1000....and they are built to last.