Danny, in reality with a nice rolling seat the wheels are at the right height to work on them and I can even do under dash work easier with the car at a 22inch height as I can get out from under the steering wheel. Losing weight helped too 
FYI, I bought my first Quickjack for $825 and picked it up in Ogdensburg NY.
A scissor jack is really nice at 48 inch, I am not saying it isn't but at the time it was not on my radar and the QJack has more than paid for itself. I have a lot of cars to do winter summer tire changes and just tabulating the savings for one year of install and storage, it saves me one QJack in value yearly, go figure. I also so far have not done any engine dropping and do not plan to do any at this point.
My garage I built in 2014 is 9 feet on the main and then the loft is 7&1/2 feet. I know I should have built the ceiling higher but I had local height restrictions. In the meanwhile you guys got me thinking that If I ever want my daily drivers to go into the garage I could modify my loft to allow the car to go to the second floor so to speak and get a 4 poster for the IM>
It is a heated garage so I don't like putting in a salt filled car in a heated garage for obvious reasons.
Anyway, so many choices but a man who has a real big garage 40x30 or more should have true garage equipment for sure.
PS. If you do a lot of work with your hands up would that not be an issue as well ?