1. Good point. Competition is good (and the ISP market is not yet in over-competition now, unlike the SIM only mobile market). The exception is probably SIMBA 2.5Gbps plan.
2. Cost reduction and newly cost-effective plans -- I expect 5Gbps plan price to come down as well (or bundled with better router).
WC 2.5Gbps plan -- S$21.80 per month
M1 1Gbps plan -- reduced to S$36.84 per month.
Starhub/M1 -- reduced 2Gbps plan (dual 1Gbps plan) to S$39 per month
Starhub -- comes with 5Gbps plan at S$45 per month (with 10G capable Nokia all-in-one ONR with wireless AX6000 by default, but you can request to have ONT option and then use your own router)
VQ -- comes out reasonably priced 3Gbps/5Gbps plan (effective price is 34.98 per month for no-frills 3Gbps plan, S$46.99 per month for 5Gbps no frills plan).
Singtel -- reduced 2Gbps plan to S$42.90 per month for new users (new home offer is at S$39.9 per month). Recontract users can also get similar pricing (my recontract offer was S$39.95 per month for 2Gbps and S$42.90 for 2.5Gbps, but I am not interested in Singtel 2Gbps/2.5Gbps offer due to the use of ONR).
Singtel -- comes out with 5Gbps plan at S$49 per month for new users (with 10G capable XGS-PON ONR plus basic wireless router which is only capable with 1Gbps)
3. More info about Singapore ISP comparison (just need to read Post #1/2/3)
https://forums.hardwarezone.com.sg/threads/singapore-isp-comparisons.6665380/