Reliable ExpressCard manufacturers?

When I bought my laptop, it came with an ExpressCard/54 slot. After further research, I discovered that there are many laptops that have this hardware capability included. However, my search for ExpressCard/54/34 products has turned up very little. I really want to take advantage of this slot since my 2yo laptop is starting to show early signs of aging. Specifically, I was looking into the small SSD ExpressCard modules in the hopes of adding slightly more storage and better page-file performance.

The ancient relative of the ExpressCard is the old PCMCIA CardBus modules that were common for Ethernet/Dialup expansion.

If you are a newbie to the subject, take a look at the public wiki:

http://en.wikipedia.org/wiki/ExpressCard

...you might also be interested in the ExpressCard resource list:

http://www.expresscard.org/web/site/cons_wtb.jsp

While looking through the available upgrades via Express Card technology, I can't help but wonder 3 things:

Are these devices reliable; is there any source you can find or that you know of that suggests these devices are prone to failure?

Is this a dead market; are there simply not enough manufacturers interested in building useful ExpressCard modules?

If you were in my position, would you be willing to take a chance and buy one of these modules?