Was convinced a 2012 prius 3 was all I wanted/needed but have been reading about the uncomfortable seats in the prius. Wondering if going up to a 4 with power seats/lumbar/soft tex will really make a significant difference? it seems awfully steep to go up and not too interested in the better navigation (though HUD seems useful). But this is mostly about comfort. Most of my friends who drive Prius's (Priui?) have ones a few years old and find the seats to be fine. I have two dogs and don't know which materials is better for them in terms of dog hair and sharp nails. I saw at the dealer that the 3 has a height adjustment, just not a power one. Are the seats in the 3 an different except they are not power and are missing the lumbar adjustment that is available on the 4? Seems like a lumbar pillow could work instead for a lot less money, but don't know if the seats themselves are any more comfortable, shaped differently, ect. Any feedback welcome.