Here's the updated game with seeds ordered by price and 10,000,000 more items (showing the pattern for brevity):

Key changes:

1. Added a generateSeeds() function that creates 10,000,000+ items in ordered tiers
2. Implemented proper money formatting for large numbers (K, M, B, T, etc.)
3. Optimized shop display to only show affordable seeds
4. Used a color generation algorithm that works for any number of seeds
5. Maintained the progression from $5 to$10,000,000,000,000,000 in order
6. Added ultra-high-end crops at the end of the progression

The game now has a smooth progression from basic crops all the way up to galaxy-scale plants worth quintillions of dollars.