Ripley62

I know this is a month after the other posts. its been a few years since I regually traveled to Thailand but I also have a the same Marriott 7 night certificate, like yours mine are for 25k per night or less. A word of warning there have been a number reports Marriott is not extending the certificates beyond the 1 year from purchase. So beyond at the latest August 2019, August 2018 was the last the older packages were sold.

I'd also look the hotels prices, in general Thailands hotels nightly rates are low enough that redemptions aren't really great. For example the Renaissance Koh Samui Resort & Spa for the months of April and May this year run around $1300 to $1500 with tax for 7 nights. This is a 35k hotel so you'd have to add 70k points to use the 7 night cert. The turning in value, the points Marriott will refund, of a 7 night cert for 25k/night is 45k points. Which sounds low but that means it'll tcost you 115k points to use that 7 night certificate. I'd think there are some very nice hotels in Tokyo or HK were those 115k points would be a bigger savings than buying a 7 night in Thailand. I just used the Renn Ko Samui as an example most of the Thai Marriott hotels are similar value for points.

Another example is Le Méridien Chiang Mai which is also now a Cat 5/35k hotel so it would require an additional 70k points for the 7 nights. That hotels during April or May for a 7 night booking is under $900 total.