Dental Implants are much better than dentures however the dental implants are more expensive than dentures are.
A single dental implant can cost between $3,000.00 to $4,000.00 so yes that is expensive.
Dentures for all teeth range in cost of $3,000.00 to $4,000.00 but if you can afford to have the dental implants then the dental implants would be much better.
However if you do want a full set of dental implants they can cost as much as $30,000.00 to $90,000.00 depending on the dental implants and the dentist who does it.
Some dental insurance plans may cover at least part of the cost for dental implants but not all of them will.
Most times the entire dental implant procedure comes directly out of the patients pocket.