I have fond memories of those covers, i think i spent a large amount of time looking at them, as I'd pick up that month's issue for the 70th time that week and look through it again. Some of those issues were packed with so many new games to look at and wish I could play. It replaced the Argos catalogue in a way. The Mario Tennis one, any of the Perfect Dark ones, the Turok 2 review one. I started with the 1998 Zelda cover and I've still got most of the issues. I remember the Donkey Kong 64 review issue was packed with more reviews of [good] games than I can remember any issue of a magazine. The coverage of both Ocarina of Time and Perfect Dark filled most of the magazine's run.
I like that looking back at the covers now, and reading stuff like 'The World's first EVER review!' and 'Better than Goldeneye?' alongside TUROK 2 and then another 'Better than Goldeneye!' alongside Perfect Dark, and another 'Goldeneye-beating brilliance!' and PERFECT DARK - '65 pics you've NEVER seen before' it all reads quite funny.
Reading a magazine like that, it felt like the best job in the world was covering all those new games or being involved in their creation at Rareware.