Cartridge recommendations

[Cricketbat70]

Yesterday I went to play a record on my late 80's (I think) rega only to find the stylus hanging down at a strange angle, I tried to push it back in. The current cartridge is a Goldring 900SE-2 which Google says was made in 1978, my turntable maybe older than I thought. I was given it 20+ years ago and it sat unused in need of repair until I finally took it into Wilkinson's Hifi in Nelson 4years ago. Can I just replace the stylus or is a new cartridge needed and what can you recommend that isn't going to cost a small fortune?