look at Google and Kindle tablets
The Kim Komando web site has a chart comparing many of the tablets and the Yahoo.com site had a similar chart one or two weeks ago. If you need the larger size such as 10 inch, it will cost you a lot more than the smaller 7 inch ones. If you upgrade from 16 to 32, it costs more. Look at Nexus 7 ? Your purchase will be contingent on the wifi connectivity you use and expected type of use. I am going to buy my grandson a tablet after Christmas. He is proficient in p.c. usage (he is a webmaster) but as a frugal consumer, he wants to buy the ten inch Google, Nexus 7.
This device will supplement his personal laptop and many computers at work.