I have a ti-84 and technically I have a ti-89 and I used to program in ti-basic but I thought it was too slow so I found axe parser. As a surprise I will tell you how I got into programming. I was at a tmsca competition and I didn't have my hp33s so I had to use a ti-84 and I didn't know how to use it so I lost and I cried... But it got me interested in how to use the calculator.