It's a valid question, especially considering the customer's preference not to take many tours which Regent includes in its pricing.
On the flip side, however, assuming a few things;
- that not everyone has the same preferences in cuisine;
- that most people cruise to see the world (meaning they want as many tours as possible)
- that when you hit the luxury bracket "value" is not always the primary concern, meaning some people have enough money that the choice is more about personal taste than it is about value.
THEN it is certainly possible that Regent is an equally good choice even if it costs more.