Is $8000 total a lot for 4 veneers and one cap?

Its always difficult to judge cost without seeing a case first hand. FairHealthConsumer.org is a great place to go to get regional average costs on almost every medical or dental procedure available. According to their information, that price is about $2000 above average for your zip code. Be sure to ask what type of material is being used and what kind of warranty the doc provides for these restorations. In my opinion, it should be a 5 year minimum.

When considering the cost of porcelain veneers, you need to take into account a number of different factors. These factors can include the skill of the dentist, the state of your teeth, how many veneers you are having placed, where you are located, whether the dentist includes a guarantee on their veneers, and more.
While it is understandable to want to make sure you're not getting ripped off, there is a wide range in the potential cost of porcelain veneers. Feeling comfortable with and trusting your dentist, as well as demonstrable skill and experience (ask to see before and after photos and look at reviews to help gauge this), should be more important than price when considering cosmetic dental treatments.

it is doctor's professional charge. so any amount is perfect [not high or less]. but if you want to save money thn dental tourism is good option for you.you will save upto 70% on total treatment costing. in india best quality porcelain veneer costing [per veneer] is approx 200$ . 

you can have the same materials,quality,and results, in dental tourism for a third of that price,and still a 1 week vacation in an all inclusive resort in cancun,thats what many americans are doing ,traveling abroad to perform dental proceedures.