eaton wrote:

In general, most transhumans have never resleeved, let alone hopping bodies to avoid repairing the current one.

That's not quite true, thanks to the Fall, most have at least once.

EP Core page 38 wrote:

Most people now alive left Earth as infomorphs and were subsequently resleeved into new morphs.

I don't know the percent, but I am pretty sure that most people have resleeved at least once.

EP Core page 41 wrote:

Today, transhumanity is divided into three groups. The rst group contains the true veterans of space life, the less-than-one-percent of humanity that was already living in space before the Fall. The second group is the ten percent of the population that was either born after the Fall or is too young to remember living on Earth. The remaining eighty-nine percent of the current population of the solar system lived generally happy and prosperous lives on Earth before the Fall forced them to flee to safety. These refugees form a powerful social force, but as time goes on memories of Earth grow dim and people adapt to their new homes and lives.

From that I'd imagine that somewhere between 70% and 90% of living transhumans resleeved to leave earth, and a number of space vets probably have resleeved as well.

Worth noting: "Just grow the bits" is basically how Pods are made. They're grown from bits and pieces in vats and stitched together around a synthetic nervous system. It appears to be that the central nervous system is the most difficult part of a body to recreate, given that you can, say, rebuild a whole body from just a severed head. The architecture of the brain may be so specialized that it's not really possible to create save by just fast-culturing neurons. Resleeving might seem to run counter to this, but that's more "Rearrange a few brain regions that already exist" than "Create a whole new one from scratch". Some handwavium in that but... Stands up as an answer, right?

Also market forces to consider. A flat is theoretically cheap, and dirt simple to make (humans have been making them without the assistance of technology for thousands of years), but I think it's the MRG that notes that some hyperelite like to collect discarded flats as almost a kind of museum or antique thing? So depending on how many there are lying around you could easily have sharp demand driving that cost up - but for synths and pods the supply should easily catch up to any demands, since you can shit out a Case in a couple of hours.

I theory, yes you could do many things to avoid resleeving. However, there are many reasons why you might want to resleeve instead. It can be way faster. It takes an hour to imprint an ego into a new morph. A dip in a healing vat can take anywhere from 1 hour (simple) to 3 days (very complex). And I think thats per change you're making (I'm not sure at the moment). Repairing damage is also time consuming, ranging from 2 hours per wound to 3 day per wound. It can be way cheaper. Morphs with built in augments are typically cheaper than trying to remake the same morph using after market improvements. If you look at the morph creation rules in transhuman, the price of augments and traits are often reduced to 1/4 of their market price. After market improvements are typically done at full price. Some traits are not easily duplicated. Durability and aptitude bonuses are not easily improved. There may be plenty of SOM and REF augments, but there few COG and INT augments. DUR augments tend to be quite expensive. You are not doing yourself many favors if you seek to augment a Flat or Case to anything high performance. Increase options. As a piece of meat, you can't fork without an ego bridge. It is easy to abandon a synth morph. Become an infomorph and escape by wi-fi. Flexbots and Swarmanoids are quite different from a typical human biomorph. I don't think a meat brain will serve a flexbot well, and swarmanoids are definitely out of the question. Infomorphs can be accelerated to 60x simulation speed.