Incredible how high the cost has gotten since 1970. I recall seeing the movie "Airport", and a pilot makes the comment in the movie that a 707 carries a price tag of $8 million. Heck, that's pocket change today. You need 25 times that to get a 747.
According to Boeing's latest price list you can have a 747-400 for $177 million.
Other prices are:
B717-200: from $35 million
B737-600: from $40.5 million
B737-700: from $46.5 million
B737-800: from $57 million
B737-900: from $60 million
B747-400 combi: from $194 million
B757-200: from $72.5 million
B757-300: from $81 million
B767-200: from $100 million
B767-300: from $114.5 million
B767-400ER: from $125.5 million
B777-200: from $152.0 million
B777-200ER: from $160.5 million
B777-200LR: from $186.0 million
B777-300: from $177.0 million
B777-300ER: from $201.5 million
deduct aprox 20% from the list price and you will find the typical price airlines getting it for.
of course, lauch customers and big-deal customers may expect even more.
as i know from reliable source in GECAS, there is no evidence that any airline/leasing company paid list price for any boeing aicraft for last 15 years.