I think you need to establish why your gibbiceps died before you buy anything else. A gibby should live 15+ years without any problems at all. Significantly more, if cared for properly. So if your gibby died at less than 15 years of age, you have a problem. Perhaps a toxic substrate, intermittently poor water quality, copper or something else toxic to catfish in the water. Whatever, you need to figure it out.
There's no point buying another loricariid for your aquarium if you're introducing it into a system where it won't thrive.
It's also worth mentioning that "cheap" fish are often cheap because [a] they are mass produced and of low quality or difficult to sell at a higher price. While you expect a tetras and guppies to be cheap because they're small, a big fish at a low price should ring alarm bells. $30 for a nice loricariid is a good price, if it's cared for properly. Looking after wild-caught loricariids especially is difficult, and a lot of the 'chain store' fish shops basically let them starve until someone buys them. You need to know how to recognise a healthy loricariid as opposed to a sickly one. A cheap sickly loricariid is not good value at all, because it'll likely be dead in a few weeks. But a more expensive loricariid that's been cared for in the store might seem 'expensive', but since you'll get 15-20 years of pleasure from owning it, turns out to be very good value indeed.
Cheers, Neale