David Megginson
Pattern Altitude
Oh yes, with rentals, all bets are off. Ditto if you're at a busy, towered airport and/or waiting to pick up an IFR clearance, or it's winter and you have to shovel snow, remove wing covers, etc. I was giving my best case of 30 minutes from arrival at the airport to VFR wheels up (since we count all time from wheels up to wheels down as flight time).That part is true. For me it's 10+20+10+10. However, @David Megginson forgot to add startup, taxi, run-up, pattern exit, pattern entry and shutdown. From my experience in rentals where I always had an eye on the Hobbs, that adds something in the 0.5-0.7 range
My 160 hp PA-28-161 can do Ottawa to Boston or New York in about 2:45 flight time (bit more with a headwind, bit less with a tailwind). If I got rich and replaced it with a bizjet, it would barely change my total door-to-door trip time for a short trip like that (though my dispatch rate would be better in bad weather). You have to be flying a long way (say, 500 nm ++) before getting to/from the airport, preflighting and securing the plane, and all the stuff @asicer mentions matters less than how fast your plane is.
So to the OP, I'd say for 150–200 nm trips, focus on comfort and affordability (including easy maintenance and fuel efficiency), more than speed.