I suppose rooting is not for everyone. I first got into it for a very specific reason. The phone I had came with too small an amount of internal memory, and at that time it was running Eclair. Only when Froyo was pushed did the ability to move apps to SD come to us. So to gain Apps to SD capability at the time, the only option before me was to root the phone. I kept the stock OS for awhile, but eventually tried a ROM. It made the phone's performance faster and sleeker than it ever had with the stock OS. I even tried out overclocking.
When I got my current Droid X, I intended to just root it. These days I root for a different set of specific reasons. I like being able to make and restore Nandroid backups of the entire phone and its apps within a few minutes time. I have never found a stock OS app that has such features, and I don't think they exist. Also, along with that, I like the ability to access ALL the file structure for customization, to improve upon or eliminate certain stock aspects, like the insanely annoying Home key on the LG Ally slide out thumb board, which, placed right beside the backspace key, was constantly getting pressed unintentionally and dumping me completely out of an email or forum post as I was typing. It was maddeningly frustrating, not only just for me but for others who posted similar aggravation from it. Having root access allowed me to learn how to actually remap that key so that it became disabled.
The rooted Droid X seemed to be working well with the stock Froyo OS. But, it seems Motorola hosed the alarm notification feature when they pushed Gingerbread to the DX, and all my daily repeating alarms stopped being reliable. I was fortunate to have Voided Saint here on the Forums tell me he believed Cyanogen Mod 7 ROM actually addressed and fixed that issue, and he was totally right. My DX has not missed an alarm since I flashed CM7 months ago.
So, it was only natural to want to root my new A500 tablet when I got it. I wanted to continue making Nandroid backups. Once rooted, the installation or removal of custom ROMs becomes child's play, so trying them is quite easy. Honestly, I flashed Lightspeed 4.4 last night because I was bored.
I had been running Thor's HC 3.2.1 ROM prior to this and it had no problems at all.
At this point, I like Lightspeed, but it's only been 1 day. However, once ICS does get pushed to the A500, I will still wait until the devs gain root access using it before I would want it anyway, because I don't want to give up the ability to make Nandroid backups. I wish all devices had that feature baked into them right from the factory. It is a great feeling of security to know even if something totally wipes out my device's files I can get them all back again within minutes (as long as the hardware hasn't failed somehow).