> I don't even know how to rationalize this anymore.

Bad UI doesn't matter, while the company's exec is golfing with the sales rep from SAP. And after the deal is done the exec has an assistant responsible for filing expenses etc.

What then counts for the exec are the reporting features, where somebody can send them a nice report on all the expense bookings, accounted for tax and all those complicated things, and agreggated per depertment etc. and knowing that expenses which can be passed down to customers are put in the invoicing systems ... that's the area where the value of such systems lies. Not in usability.