Swanstrom offers pretty reasonably priced servicing of their tools (and other brand as well) (but $75 minimum order, so you need to send quite a few).
http://swanstromtools.com/recon.htm
I really like the Swanstrom tools I have, but I have to admit I don't have a lot else to compare to (besides cheapo stuff).
Swanstrom makes good tools. Compared to others, they're similar to Tronex IMHO, but are a bit larger in size. So if you're working in a lot of tight spaces, they may not be the best choice. Handles are also very similar.
As per a reconditioning service, try locate a local source if possible (literally may operate out of a garage, but don't freak out, this type actually tends to produce the best quality work). They tend to be more willing to work with you for small quantities (individual to a few pieces) than a cutter manufacturer. Less hassle too IMHO, as you don't have to ship anything. If you can't however, there are independent reconditioning services that will recondition any brand of cutter.
Thanks for the plug of my blog guys...just a little side note on Tronex second hand pliers, if your living in the 'States (or anywhere else if you can justify mailing them) they offer a re-sharpening service. I'm not sure what they charge but I am told they do a good job.
You earned it.
Thanks for putting in the time to write it.
Is it worth buying quality one off ebay or just stick with the cheaper name brands like hakko or something
In my experience, Yes.
There seems to be a number of sellers that deal with cutters that have already been resharpened. So as long as the joint is good, you get a great pair of cutters for far less than new street prices. You won't find a full line, but you can get commonly used P/N's, such as Lindstrom 8130, 8140, 8150, and 8160, Swanstrom 51x (x is 0, 1, or 2; cutting edge of bevel, micro bevel, and full flush respectively), and 61x for example. Just buy from someone with a return policy just in case you get a bad pair (bad joint, nicked blades, whatever).
All of mine where purchased from eBay (both new and used). Most I spent was $30.00 USD, and was for a new-in-package Lindstrom Rx8130. I just had to be patient for those prices.