Hi folks! New member here. I currently drive a 2007 Prius which has been great... but just got T-boned by someone backing out of their driveway really enthusiastically without looking. Waiting for confirmation from insurance, but my car is likely totaled. So, I'm looking at getting a 2017 or 2018 used Prius to replace my '07. My top two contenders right now are a 2017 Prius Three that has blind spot monitoring and a 2018 Prius Three that does NOT have blind spot monitoring, but DOES have the head-up display and a moon roof (which is not necessary, I just think it's kind of fun). Both cars have adaptive cruise control, bluetooth, etc. so are otherwise pretty similar as far as features I'd like to have. So my question is: For folks who have blind spot monitoring and/or head up display - which one do you think is more important? Do you feel a lot safer having the blind spot monitor? My old car didn't have it, and I've never driven a car with it (I just adjusted my mirrors like CarTalk told me to, and never felt like I had a problem, lol). The head-up display seems cool but I can't tell how useful it would actually be, or if it's just kind of a neat tech feature. Would appreciate any advice! Thanks!