You can't
The research that is needed to do before buying a cheap digital camera is the research about the specifications of the digital camera as well as the price and budget range that is needed to buy the cheap digital camera.
There are many stores where you can buy Canon a650 camera, but i personally suggest Amazon
Thermal imaging cameras are generally expensive. New ones typically cost at least $1000. However, you can get it lower if you buy a used one from Ebay or Amazon marketplace.
A lens wont help. You will need to buy a special camera for that.
Stores that sell camera lenses for Canon are: the main Canon website, Best Buy, Amazon, or Ebay. These websites sell Canon camera lenses for a cheap price.
You can buy a SLR camera online for a good price at ebay or amazon
If price is your main concern, a professional DSLR camera can be found on amazon's website. If you are more comfortable shopping in the retail stores, I know Target has a great selection of DSLR cameras for a reasonable price.
A person can buy a cheap 8MP camera from Walmart or Target. One can also buy from Amazon, DHGate, Aliexpress, Geeks, TigerDirect, NewEgg, and TheCheapChoice.
You can purchase a cheap camera bag on EBay where they sell new and used items for cheap. They have real good cheap camera bags for all products available online.
Yes. You can buy wild star gold online with cheap price.
You can find camera bundles for cheap if you buy it off of someone on eBay or off of someone you might know but before you buy it make sure you like it.
A good cheap camera bag can be found from many retailers, both in store and on line. Best buy carries many camera accessories like camera bags. Amazon.com is also an excellent source for these.