"expensive to boot" is a correct phrase and can be used in written English
It is typically used to emphasize that something is costly or expensive in addition to other positive qualities. Example: The new restaurant not only has delicious food, but the decor is luxurious and the service is impeccable- expensive to boot!
And most were too expensive, to boot.
State monopolies make for internet connections that are slower than Iraq's and, like phone lines, expensive to boot.
Throwing desperate people fleeing death and persecution in prison on small Pacific islands for having the temerity to seek refuge in Australia isn't just morally wrong, it's irrational, illegal and prohibitively expensive to boot.
Chunky and legible, it shouldn't be too expensive to boot.
The myFaves-compatible clamshell from Samsung is curvy, sure, but bulky when compared to the manufacturer's other offerings for T-Mo, and more expensive to boot.
The game is so difficult to master that even professional players routinely fail to post par, so time-consuming that it takes the better part of a day to play and its expensive, to boot.
Two months later Huhne condemned the orders as Kafkaesque, a bad dream and a nightmare, that were "a violation of fundamental rights and an expensive failure to boot".
Critics of wind turbines argue vehemently that they are ugly and inefficient - a blot on the landscape and an expensive folly to boot.
Here's some advice that will help you make it a daily habit and stave off expensive back problems to boot.
Web access in the region's poorer nations, such as Bolivia, Paraguay and many Central America states, is not only far lower but typically more expensive and slower to boot.
Owning my fair share of $30 layering t-shirts from the likes of J.Crew and a few expensive designer ones to boot, I was curious to try this basic wardrobe element for an admittedly attractive price.
