Yep, that right there is an eBay $17 holster!
If you're carrying every day, have a pulse and actually move around during the time you're carrying; that eBay special will last you.....maybe.....6 months? If it's difficult to switch to new/different pants each day...less than 6 months.
Lets say for s&g you need three per year. That's $50+ each year.
If you buy a Tommy Theis IWB for $55 it is built for your specific gun, will last for years, is comfortable and easy to re-holster. (Not one of those can be said about the eBay holster.)
Cheap is always expensive! - cane