How much (roughly) does it cost to upgrade a headjoint?

Depending on the brand and material- you probably can get a decent one used for around $800-$1000

it`s just easier to buy a new flute instead of upgrading the head joint.

"it`s just easier to buy a new flute instead of upgrading the head joint."

Yes, sometimes, but what if the new flute has a headjoint that you do not like? As long as you have a good flute body, then you really should focus on the headjoint since that is the heart of the flute and where you get your sound from.

the new flute would have all in one!! open hole, better headjoint, etc.

A new, good flute would cost a minumum of $4000. If you have a decent body already, and spend $1500 on an awesome used headjoint, you would be improving your flute a ton. And many times, the headjoint that comes with a flute is not always the greatest. So in most cases, it isn`t easier just to buy a whole new flute, when you have a good body to begin with.

"the new flute would have all in one!! open hole, better headjoint, etc."

For starters, open holes don`t make a flute better. Second of all, not all new flutes come with a magical headjoint. You need to get the right one for you. Have you ever tried any top brand headjoints on your flute?

I haven`t tried...I should...

If you do get a chance to try some, then maybe you will see where we are comming from about the whole headjoint upgrade. It really can make a world of difference.

True...
My sister just upgraded her trumpet mouthpiece *just because it cost $35* (groans)