Thoughts on choosing a secondary market over a primary?

[soundsgood]

I've narrowed my choices down to two firms.  The first is a Vault 100 firm located in a secondary market.  It is not the home office, but is probably the second most influential office of the firm.

The second is a mid-sized office (under 100) of a Vault 50 firm, located in a primary market. 

Both firms have the practice areas I'm interested in, and I'm comfortable with both cities.  I'm very tempted to go with the secondary market, mainly because I really enjoyed the people at the office, but I keep having doubts about whether it is a dumb career move, and whether I'd be limiting my future options.

Any thoughts about taking a secondary market over primary?  Thanks in advance.

[lexvitae]

I don't think you will be limiting yourself if the firm itself is strong and has a national presence.  You might enjoy living in the secondary market city more too.