For marriage and a family?  After 35 would be hard pressed.

Marriage only?  Age doesn't matter.

IMHO

 Old maid?  I say 60.

old maid?  Say maybe 19 and not married.

Quoted: how old is too old for a man to get married? is there a cut off point that makes a man un desirable or too old?

Depends on Size.
Of his portfolio

To address Merrell.... I am a 31 year old single woman.  Married once, divorced six years now.  

Quoted: by the time they are in their 30's they are (usually) making good money (& blowing it all on movies, vacations, clothes & shoes),

Yes, I do make good money.  But I usually blow it on my animals, art and travel.  

don't cook (or just nuke Weight Watchers at home)

I am a very good cook and I also bake.  Any of my ex's would attest to that as well as how I love to get up and make my man eggs, bacon, toast, etc for breakfast.  

and want a guy who: a) lives within 5 miles of where they do (they're not going to move and have to find a new coffee shop)

I'll be honest... it is more convenient when the person lives within 10-20 miles to see each other but I've also lived in 7 states.  Moving is exciting for me but, with five horses, it can't be on a whim anymore.  

b) makes 150K+ a year (this drops to 75K+ at 35)

I would like a man who makes a salary commensurate or better than mine... so this does apply.

c) loves: going to the theatre, plays, antique shopping, quiet romantic walks on the beach, travel (Paris & the Caribbean)

Amend that to camping, fishing, hiking, CANOEING, shooting and travel (NOT Paris but the Caribbean would be nice... SCUBA!!)

d) doesn't smoke, only drinks wine, has no single friends, rather only hangs out with other upper middle class couples

Prefer a non-smoker... stinky.  I smoke when I drink, though, so I can't be too judgemental.    Social drinker is fine... mean drunk or regular drunk was never acceptable.  Prefer he has his own friends... in fact, I think men's softball leagues and what not are a great thing.    

e) is happy with sex once a week

Sex is like the vegetable of the relationship... keeps it healthy.  And you should make an effort to include it in your daily diet.  

f) is willing to get a $450K house (on 1/4 acres) in a new development with the best schools

Don't want to be house poor but agree that the school district is important.  There is a compromise here... although 1/4 acre would be more like 7-15 acres.  

g) is sensitive, like Alan Alda

Men who cry all the time make me uncomfortable.  So I must poke them with a stick until they stop.  Poke, poke..... POKE.  

h) loves to sit and watch sitcoms every night, must find "Friends" intensely funny

Must be tolerant of my love of Law & Order and any real or fictional forensic science program.  ::sheepish grin::

i) must listen  to core dumps of every problem at work, with friends or what the manicurist said about the lady across the street, every evening without interruption.

Abbreviated version, yes... but the in detail is usually more appropriate for my girlfriends or momma.  

Before the women get all in a tizzy, the guys are no better - chiseled body means pear-shaped, dashing means a comb-over and independently wealthy means unemployed, lol.

NO SHEOT!!

Quoted: old maid?  Say maybe 19 and not married.

+1...every girl over 18 should be shipped out of the country. White women especially, they age bad.