Technology for the Classroom

Right now, our classroom has a total of 5 chromebooks. I'd really like to expand the technology and use in my classroom.  Not only will these devices be more portable, but some of the apps will allow students to do many things! SeeSaw allows students to read aloud and go back to hear themselves. They'll be able to record presentations...... and the best part? It connects to parents allowing them to see and hear how much their child grows throughout the year! These will be used during reading centers, as well as math centers, which are done daily! 
Additional apps: Hooked on Phonics, Math Practice Flash Cards, Starfall, Word Market, etc
https://www.amazon.com/dp/B01J94SBEY/ref=ods_tab_hqp_dket_dotd
The link above shows the tablet and case I'm trying to add to my classroom technology. The goal is to get five! 
At this time, each tablet (including the case) is$89.99 (normal price is $129.99)
Any help would be greatly appreciated!