If you're comfortable with that solution, that would save you having to bring it along with you and bring it back, and then you wouldn't have to worry about possible damage (which does occur).

Drawbacks include:

Can you get the model/size/features that you require and/or are comfortable with?
Will it get there in time? And will there be any customs issues with delivery?
What will you do with it at the end of your trip?
Will you be ok in transit if wheelchair assistance isn't available or is delayed?