Upload & Sell: On
Definitely what-you-pay-is-what-you-get, but even so there are some good deals out there, just without as many bells and whistles and less-rugged construction.
The Made-in-America Alien Bees line by Paul C. Buff, Inc. is very popular, and is used by many portrait shooters; for a bit more money his new Einstein ups the game considerably.
For imports, both Elinchrom and Bowens have monolight strobes in a variety of price points.
Pack-and-head systems still have advantages, particularly if you're hoisting lights on a boom, so don't rule them out. Sometimes a combination of the two is the way to go.